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Post subject: Re: Bandmaster Advice Please
Posted: Wed Mar 04, 2015 7:07 am
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Great info on the ceramic caps.
The last question for now is about their values.
.01 and .022 are easy enough to find but what about the voltage, does it matter whether they are 50V or 1kV ?
Thanks.


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Post subject: Re: Bandmaster Advice Please
Posted: Wed Mar 04, 2015 7:33 am
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50 is too low , use 1 Kv


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Post subject: Re: Bandmaster Advice Please
Posted: Wed Mar 04, 2015 12:46 pm
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Thanks Stratelle, I just wasn't sure if too high a value was a problem. I was guessing too low could be.
If I find I need to change them I now know what I'm looking for.
:D


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Post subject: Re: Bandmaster Advice Please
Posted: Wed Mar 04, 2015 12:53 pm
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Skylarkpilot wrote:
Thanks Stratelle, I just wasn't sure if too high a value was a problem. I was guessing too low could be.
If I find I need to change them I now know what I'm looking for.
:D



Capacitor voltage is for insulation , thoughness, no problem if too high.
But higher = more expensive .

Good ceramic caps for tubes amps are always 1 Kvolts and more.

Tubes amps have few hundred volts , no good for 50 volts caps


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Post subject: Re: Bandmaster Advice Please
Posted: Wed Mar 04, 2015 3:52 pm
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Thanks again Stratele,
The explanation is very useful for someone like me who is really trying to get my old amp into good order. :mrgreen:


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Post subject: Re: Bandmaster Advice Please
Posted: Wed Mar 04, 2015 4:10 pm
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Skylarkpilot wrote:
Thanks again Stratele,
The explanation is very useful for someone like me who is really trying to get my old amp into good order. :mrgreen:



:D You have a great amp


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Post subject: Re: Bandmaster Advice Please
Posted: Mon Mar 16, 2015 12:28 pm
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Ok so I had two issues with the vibrato on my '68 Bandmaster.

These were ticking and it was missing a beat here and there which was rather irritating.

I tried just about everything under the 'tick' cure heading and it persisted.

Finally I replaced the trem 'bug' with the genuine Fender part.

The tick has pretty much disappeared. It's more like a really quiet heartbeat now, you can just about hear it if you're listening for it but it is not at all intrusive. Probably the way the amp left the factory.

The missing beat, that I previously described as 'morsecode-like' is cured. Nice constant vibrato.

The really interesting thing was cutting open the old bug. I shall try and post a couple of photos.

The neon bulb had some discolouration/soot marking internally. Perhaps a slight loss of vacuum over the years allowing that. The sensor just looked like it had suffered old age.

Anyhow, if you have a similar issue for the sake of $9 this cured it for me.
Thought I'd share............

Old 'Bug'
Image[/URL]
How the bits sit together inside the wrapper
Image[/URL]
Old internal bits looking a bit raggedy
Image[/URL]
Scorching, or soot mark inside neon bulb.
Image[/URL]


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Post subject: Re: Bandmaster Advice Please
Posted: Mon Mar 16, 2015 1:27 pm
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Great picture, tank's

Fender parts Made in Canada !!!!!!


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Post subject: Re: Bandmaster Advice Please
Posted: Mon Mar 16, 2015 2:54 pm
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Yep, surprised me too, genuine Fender made in Canada :D
It works perfectly though so I'm certainly not complaining.........


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Post subject: Re: Bandmaster Advice Please
Posted: Mon Mar 16, 2015 3:07 pm
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Skylarkpilot wrote:
Yep, surprised me too, genuine Fender made in Canada


Blackface/brownface amp logos are now made in the Peoples' Republic Of China.

Arjay

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"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


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Post subject: Re: Bandmaster Advice Please
Posted: Mon Mar 16, 2015 3:39 pm
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Retroverbial wrote:
Skylarkpilot wrote:
Yep, surprised me too, genuine Fender made in Canada


Blackface/brownface amp logos are now made in the Peoples' Republic Of China.

Arjay

:(


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Post subject: Re: Bandmaster Advice Please
Posted: Mon Mar 16, 2015 4:38 pm
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Big-ticket items like premium guitar amps should be clearly marked in promotional literature with the percentage of foreign-sourced parts just as with the dealers' invoice stickers of new automobiles.

Arjay

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"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


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Post subject: Re: Bandmaster Advice Please
Posted: Tue Mar 17, 2015 5:54 am
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Arjay, well it seems that almost ALL resistors, caps, solid-state components, sockets, circuit boards, wires, jacks, plugs, and pots are made in China these days. US, Canadian, or Euro made components prolly too $$$ for any mass produced amp.

Number one fail is the solder and soldering. I don't know why that is. Lead-free solder is harder to solder correctly. Needs more heat. But, after years of problems with soldered joints, you'd think that something would have been done to correct the issue.

Most amps will benefit from sucking up the OEM lead-free solder and careful application of 60/40. Esp, components that get stressed during use. Like jacks and pots on circuit boards. Sockets directly mounted onto boards.


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Post subject: Re: Bandmaster Advice Please
Posted: Thu Mar 19, 2015 2:38 pm
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Just wanted to say thanks again for all the great advice and guidance.
This amp now sounds great.
Bad part is I now want to buy another vintage Fender :lol:


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Post subject: Re: Bandmaster Advice Please
Posted: Thu Mar 19, 2015 3:55 pm
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Skylarkpilot wrote:
Bad part is I now want to buy another vintage Fender :lol:


I don't see that as anything detrimental.

:mrgreen:

Arjay

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"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


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