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Post subject: Vibro King Question
Posted: Tue Jan 15, 2013 12:11 pm
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Joined: Thu Dec 29, 2011 11:46 am
Posts: 190
Location: Coupeville, WA
:shock: It appears that on the schematic there may be an error or not

cuz MY 2010 VK has unused triode in V1's (stereotypical V1 position) it appears on my amp that V2 is where V1 would be..since V2a is used to recover the reverb signal and apply it to the tone and mixer variable resistors (now one must ponder the unused triode)

the tube chart on my king is void of V1...N numbers i have pixs too lazy to render them i will then re-post with my analysis of my amp for your reference

Has my almost 60 year old mind left the laboratory? :shock: :lol:

my current complement of tubes is this;

V1 (or is it V2) Preferred series 7025 (one triode being used)

V2 (or is it V1) Mullard 12AX7 (both triodes being used)

V3 Genalx 6V6 rating (unknown)

V4 Preferred series 7025 (if you look at the schematic this would be V1 in most fender amps same circuit as a typical Fender Pre until the signal is taped at the plate)

V5 Mullard 12AX7 PI (also used a 6201 (12AT7) in there and of course the power dropped...sound testing as soon as some resistors arrive so i can accurately measure bias

V6 Old Jan RCA 12AX7 (vibrato circuit i don't use but i want it to work if needed) works fine with the tube removed (the amp that is not the vib)

V7/8 Sovtek 5881 sounds good

but the goal is to slap in the two KT66's and get this house a rock'n (gawd as it is now if i plug in ole #14 HOLY >>>>>>>> :shock: 8)

BTW i have some killer Tektronix audio measurement gear for sale...the works (i upgraded)

:wink: :mrgreen: 8)

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Post subject: Re: Vibro King Question
Posted: Tue Jan 15, 2013 6:47 pm
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Joined: Mon Apr 05, 2010 2:37 pm
Posts: 8708
Location: Natural Bridge, Virginia
rollo wrote:
BTW i have some killer Tektronix audio measurement gear for sale...the works (i upgraded)


Advertising items for sale is not allowed in this forum.

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