It is currently Mon Mar 16, 2020 7:44 am

All times are UTC - 7 hours



Post new topic Reply to topic  [ 27 posts ]  Go to page 1, 2  Next
Go to page 1, 2  Next
Author Message
Post subject: NAD 1968 Drip Edge PR
Posted: Thu Sep 13, 2018 1:47 pm
Offline
Professional Musician
Professional Musician

Joined: Wed Dec 15, 2010 7:06 am
Posts: 1662
Well this was at my house when I got home last night, I have a story, it might be long. I will not be upset if not read, you still may look at all the photo's and add comment if you like, Here goes: :roll: I have wanted a PR for about 3 years when I realized and measured the db level coming from my 1969 SFSR was going to hurt my ears pretty bad if I kept it up. So I searched and searched and there were some for more than I wanted to pay, and more than those reissues were, and in May 2016 I found a BFVC and played it, liked it, bought it for $600 and than bought a Topanga, Catalinbread's spring reverb pedal, my ears thanked me, and I settled, thinking one day it will come a long.
Well last week I was looking at a site I go to that has auctions, and there was this SFPR, drip edge black lines, saw Made in USA, from that I knew it was 1968 to 1969, and hoped it was 68, bidding was at $910. I went home told Mrs. mud, asked so what do you think, and of course she was no help, as her philosophy is, the more you wait for something you want, the less time you will spend with it. Me, I'm the nervous type, need to do lots of research before I make a decision, oh did I mention, I am also cheep, and I don't like spending money. :lol:I than searched the net to see how much these are going for to find I could only fine 3 or 4 going for $1700 to $2400, not many out there right now. So I placed a bid for $1000 on an item that had about 5 pictures of the PR, and no gut shots, and I was FREAKING THE **&^$% OUT. It was a long week following the tracking to my house and here it is,
Image Image
When I saw the 2 prong I was very happy, I pulled the fuse, of course it was wrong a 3A quick blow, I had no intentions of firing it up before a few checks. ImageImageImageImageImageImageImage
Gut shots to follow
mud


Last edited by mud on Thu Sep 13, 2018 2:58 pm, edited 1 time in total.

Top
Profile
Fender Play Winter Sale 2020
Post subject: Re: NAD 1968 Drip edge PR
Posted: Thu Sep 13, 2018 2:06 pm
Offline
Professional Musician
Professional Musician

Joined: Wed Dec 15, 2010 7:06 am
Posts: 1662
Now let see whats inside. Looks like 20th week of 1968 I am psyched now the tube chart says AA764 ImageImageImageImageImageImageImageImageImageImage
mud


Top
Profile
Post subject: Re: NAD 1968 Drip edge PR
Posted: Thu Sep 13, 2018 2:20 pm
Offline
Professional Musician
Professional Musician

Joined: Wed Dec 15, 2010 7:06 am
Posts: 1662
I will have a few questions. First the unit smells and is pretty filthy I suppose I will need to take every thing out and clean it, What are my choices of cleaners that will not hurt it, for tolex, knobs, grill cloth, inside the cabinet. There is a little hole in the grill cloth I think I will try to sew it not sure how yet. I have some work ahead of me. I have not fired it up yet, I hope to put the tubes on my tester tonight, should I check values of the electrolytic can cap before I do or should I put in the 1A slow blow and give a very fast strum and give a listen first
Thanks
mud


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Thu Sep 13, 2018 3:38 pm
Offline
Roadie
Roadie

Joined: Sat Dec 13, 2014 7:34 am
Posts: 245
Nice find and pretty clean guts really. That's gotta be the nicest looking power transformer I've seen. How's the tank?

UN


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Thu Sep 13, 2018 4:19 pm
Offline
Aspiring Musician
Aspiring Musician

Joined: Thu Dec 12, 2013 2:54 pm
Posts: 618
Mud,
Sweet! I would replace all the "lytic caps and do a three prong power plug conversion. I have an extra Amphenol 3 prong accessory outlet that I would be happy to contribute if you're interested. Just pm me. I'm extending this offer because of your excellent post about bucking transformer.You pay shipping, nothing else. Thanks.

50 year old electrolytic capacitors are probably "drier than the Sahara desert", to coin a phrase from BMW2002I, which includes the cathode bypass caps. I would replace them.

Better coil and transformer, from the pictures.

Nice score.
Vinyl

_________________
"Where confusion abounds, there's money to be made."


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Thu Sep 13, 2018 5:25 pm
Offline
Rock Icon
Rock Icon
User avatar

Joined: Wed Mar 31, 2010 12:48 am
Posts: 26415
Location: Tombstone Territory
vinyl wrote:
Mud,
Sweet! I would replace all the "lytic caps and do a three prong power plug conversion. I have an extra Amphenol 3 prong accessory outlet that I would be happy to contribute if you're interested. Just pm me. I'm extending this offer because of your excellent post about bucking transformer.You pay shipping, nothing else. Thanks.

50 year old electrolytic capacitors are probably "drier than the Sahara desert", to coin a phrase from BMW2002I, which includes the cathode bypass caps. I would replace them.

Better coil and transformer, from the pictures.

Nice score.
Vinyl


+1 on all points......you got a nice piece of gear there, Mud.

I'm going to *strongly* recommend that you do not tamper with that small tear in the grill cloth -- it's not that bad and any attempt to repair it will likely be counter-productive. If you really desire to do something beyond normal servicing and safety upgrades, you might start searching for a speaker more befitting a vintage Princeton Reverb. The OEM Oxfords of that era are known tone-stranglers. I'd recommend a vintage (ie: Chicago-built) Jensen C10R or C10Q.

Congrats, troop......ya done good!

Rawk on!

Arjay

_________________
"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Thu Sep 13, 2018 7:57 pm
Offline
Professional Musician
Professional Musician

Joined: Tue Nov 27, 2012 6:56 am
Posts: 1677
Location: Coastal Bend, Tx.
Great score Mud, congrats on pulling the trigger looks all original to me. Some potentially nice tubes also.
+1 to a better speaker, but give it go 1st to see if it suits your ear.


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Fri Sep 14, 2018 8:27 am
Offline
Professional Musician
Professional Musician

Joined: Thu Aug 07, 2014 3:25 pm
Posts: 1022
Yea, those West German Telefunkens are worth almost $300 each.
The grille cloth tear can be stabilized with super glue. Put a drop on a toothpick and touch it to the torn threads. Don't try to pull it together.
The vertical silver thread can be replaced if you can find a few loose silver threads from the back side of a grille cloth.
Hold them at the center with tweezers. Again, put just a little super glue on the ends of the replacement threads only. Now push them sideways through the tear, twist back and pull to glue them to the backside of the grill cloth.

One of the cathode caps has been replaced already.

The Reverb output jack looks recessed more than the others.
Check all the jack nuts on old Fenders.

Tap on those disk coupling caps to check for microphonics.

Enjoy a great score...


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Fri Sep 14, 2018 7:12 pm
Offline
Rock Star
Rock Star
User avatar

Joined: Tue Mar 01, 2011 3:10 pm
Posts: 5646
Location: Gateway to the West
Congrats! Nothing like a New Amp Day! Enjoy your new acquisition.

:mrgreen:

T2

_________________
-----------------------------------------------------------
What time is it? It's Fender Time.


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Sat Sep 15, 2018 12:41 pm
Offline
Professional Musician
Professional Musician

Joined: Wed Dec 15, 2010 7:06 am
Posts: 1662
Thanks all, unfortunately work has been keeping me quite busy and have not had time to get back to ya all, nor have I had time to check out the PR
upnorth2 wrote:
Nice find and pretty clean guts really. That's gotta be the nicest looking power transformer I've seen. How's the tank?
UN

UN tank looks good, it's a Gibbs, have not yet fired it up but here are some photos
ImageIt came with the hold down strapImageImageImage
Vinyl, That is very kind of you, but for now I think I will leave the 2 socket receptacle as I never use it as a receptacle anyway, I usually put a plastic child proof cap over it after I have added a grounding-type plug, and take the ground switch and death cap out of the circuit. And yes electrolytic capacitors need to be ordered
vinyl wrote:
Mud,
Sweet! I would replace all the "lytic caps and do a three prong power plug conversion. I have an extra Amphenol 3 prong accessory outlet that I would be happy to contribute if you're interested. Just pm me. I'm extending this offer because of your excellent post about bucking transformer.You pay shipping, nothing else. Thanks.

50 year old electrolytic capacitors are probably "drier than the Sahara desert", to coin a phrase from BMW2002I, which includes the cathode bypass caps. I would replace them.

Better coil and transformer, from the pictures.

Nice score.
Vinyl

Arjay, Thanks and I am glad you mentioned not to mess with the grill cloth, and once I get this PR up to or as close to spec as I can speaker will definitely be a priority
Retroverbial wrote:
+1 on all points......you got a nice piece of gear there, Mud.

I'm going to *strongly* recommend that you do not tamper with that small tear in the grill cloth -- it's not that bad and any attempt to repair it will likely be counter-productive. If you really desire to do something beyond normal servicing and safety upgrades, you might start searching for a speaker more befitting a vintage Princeton Reverb. The OEM Oxfords of that era are known tone-stranglers. I'd recommend a vintage (ie: Chicago-built) Jensen C10R or C10Q.

Congrats, troop......ya done good!

Rawk on!

Arjay
Sfceric64 Thanks, the tube do look pretty good the RCA 6v6 did have a broken guide pin so I need to careful when inserting it into the socket
sfceric64 wrote:
Great score Mud, congrats on pulling the trigger looks all original to me. Some potentially nice tubes also.
+1 to a better speaker, but give it go 1st to see if it suits your ear.

TimsAudio, Thanks, yeah I was quite happy to see those Telefunkens in there when I opened it up and the RCA 7025 was nice to find in there also. The super glue trick may be exactly what is need to stop it from getting worse
TimsAudio wrote:
Yea, those West German Telefunkens are worth almost $300 each.
The grille cloth tear can be stabilized with super glue. Put a drop on a toothpick and touch it to the torn threads. Don't try to pull it together.
The vertical silver thread can be replaced if you can find a few loose silver threads from the back side of a grille cloth.
Hold them at the center with tweezers. Again, put just a little super glue on the ends of the replacement threads only. Now push them sideways through the tear, twist back and pull to glue them to the backside of the grill cloth.

One of the cathode caps has been replaced already.

The Reverb output jack looks recessed more than the others.
Check all the jack nuts on old Fenders.

Tap on those disk coupling caps to check for microphonics.

Enjoy a great score...

T2Stratman, You got that right nothing like it
T2Stratman wrote:
Congrats! Nothing like a New Amp Day! Enjoy your new acquisition.

:mrgreen:

T2

Again thanks all Now I will wait for parts and of course the main thing TIME.
mud


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Sat Sep 15, 2018 4:42 pm
Offline
Rock Icon
Rock Icon
User avatar

Joined: Wed Mar 31, 2010 12:48 am
Posts: 26415
Location: Tombstone Territory
Another vintage alternative is the alnico CTS 10 from a Super Reverb -- I have one installed in my '65 Princeton Reverb and it absolutely purrs. But beware if this be your choice -- there are Fender-marked versions of this speaker floating around that feature a 32-ohm voice coil (they're from the column speaker systems that were designed for the solid-state PA4100). Be sure to check any of these CTS speakers with a VOM to confirm an 8-ohm voice coil.

Arjay

_________________
"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Sat Sep 15, 2018 6:35 pm
Offline
Rock Star
Rock Star
User avatar

Joined: Sat Jul 03, 2010 2:18 pm
Posts: 6544
Great acquisition, Mud! :)

Retroverbial wrote:
Another vintage alternative is the alnico CTS 10 from a Super Reverb -- I have one installed in my '65 Princeton Reverb and it absolutely purrs.
Arjay


Excellent suggestion. And there are re-cone kits out there. I have a pair in my VLR. One of my favorite amps!

Image


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Sat Sep 15, 2018 7:52 pm
Offline
Professional Musician
Professional Musician

Joined: Tue Nov 27, 2012 6:56 am
Posts: 1677
Location: Coastal Bend, Tx.
As far as cleaning goes, I generally use a mild detergent(Dawn and hot water) for everything non electrical,
Brasso and soft cloth for all exposed metal or rusted parts, De-Oxit for all electrical stuff(pots, tube pins, sockets), canned air in the chassis for loose dirt/dust, braided solder remover for stray soldier. I use all sorts or brushes from tooth to gun and even the occasional cloth pipe cleaners. I haven't tried to clean the grill cloth on any amps, other than small stain removal spots and use a very fine super glue as Tim suggested to stop the spread or minor tears.

Your amp looks damn clean compared to some of the auction amps out there.


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Sun Sep 16, 2018 8:34 am
Offline
Rock Star
Rock Star
User avatar

Joined: Tue Mar 01, 2011 3:10 pm
Posts: 5646
Location: Gateway to the West
Retroverbial wrote:
Another vintage alternative is the alnico CTS 10 from a Super Reverb -- I have one installed in my '65 Princeton Reverb and it absolutely purrs. But beware if this be your choice -- there are Fender-marked versions of this speaker floating around that feature a 32-ohm voice coil (they're from the column speaker systems that were designed for the solid-state PA4100). Be sure to check any of these CTS speakers with a VOM to confirm an 8-ohm voice coil.

Arjay


+1, Arjay turned me on to the Princeton with an CTS Alnico and its a fine tone combination!

T2

_________________
-----------------------------------------------------------
What time is it? It's Fender Time.


Top
Profile
Post subject: Re: NAD 1968 Drip Edge PR
Posted: Mon Sep 17, 2018 5:28 am
Offline
Aspiring Musician
Aspiring Musician

Joined: Wed Nov 14, 2007 1:29 pm
Posts: 614
Location: SW Ohio
Nice find. Congrats and have fun.


Top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 27 posts ]  Go to page 1, 2  Next
Go to page 1, 2  Next

All times are UTC - 7 hours

Fender Play Winter Sale 2020

Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to: