Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Geno on June 23, 2024, 12:33:09 pm

Title: ga5 skylark
Post by: Geno on June 23, 2024, 12:33:09 pm

how do I remove the tone circuit

Title: Re: ga5 skylark
Post by: bmccowan on June 23, 2024, 12:51:19 pm

 :laugh: Now that is a minimalist post. How about some info?
There are several Gibson GA5 skylarks. Some have no tone circuits at all. You want to permanently or temporarily remove it?

Title: Re: ga5 skylark
Post by: sluckey on June 23, 2024, 12:53:54 pm

First you must find the pot, but don't smoke it!   :l2:

Title: Re: ga5 skylark
Post by: Latole on June 23, 2024, 02:21:14 pm

Cut here;

Title: Re: ga5 skylark
Post by: shooter on June 23, 2024, 03:09:56 pm

for the fixed filter;




EDIT:

Quote

find the pot,

PM me  :icon_biggrin:

Title: Re: ga5 skylark
Post by: sluckey on June 23, 2024, 03:56:35 pm

Quote from: Latole on June 23, 2024, 02:21:14 pm

Cut here;

That schematic clip comes from the GA-5T, not GA-5. (T stands for Tremolo)

Title: Re: ga5 skylark
Post by: tubeswell on June 23, 2024, 04:56:28 pm

which GA5 circuit?

Title: Re: ga5 skylark
Post by: Latole on June 24, 2024, 02:59:59 am

Quote from: sluckey on June 23, 2024, 03:56:35 pm

Quote from: Latole on June 23, 2024, 02:21:14 pm

Cut here;

That schematic clip comes from the GA-5T, not GA-5. (T stands for Tremolo)

Oh! Sorry.
But no matter what amp you unplug the tone pot from, there's no more tone control.

Title: Re: ga5 skylark
Post by: bmccowan on June 24, 2024, 09:56:19 am

There are at least 2 models of the ga5 skylark that have bass and treble pots. Since he states "tone circuit" it could be one of those. Gibson decided to throw ga5 on way too many amps.
Regardless - it would help if folks included a reasonable amount of info with their questions.
And you can walk on my lawn, but stay out of the garden :cussing: