Issue is one valve is noisy, and the reverb is weak. Sounds fairly nice & loud right off the bat. V1 is microphonic.

Tubes:

**V1 preamp 12AX7 microphonic (in stock)

V2 overdrive 12AX7 ok

V3 Phase Inverter 12AX7 ok

V4 & V5 power GT6L6B OK (not biased yet)

Note: Reverb is driven by a TL072 J-FET Amplifier

Electrolytic caps:

C14 reverb 25V/22uf ESR 1.4 ok $2.50

C16 reverb 100V/.47UF ESR 33.69 ok $2.00

C31 Res 500V/47uf ESR 0.774 ok $10.00

**C33 V4&5 500V/22uf ESR 2.19 (bad) $5.00 (in stock)

C35 V3 500V/22uf ESR 1.71 ok $5.00

C36 V1 & V2 500V/22uf ESR 1.86 ok $5.00

C40 16V relays 35V/1000uf ESR 0.006 ok $2.50

C41 16V relays 35V/1000uf ESR 0.011 ok $2.50

**R 78 & 79 burned $1.00 each (in stock)

Present status:

Will swap out V1 for known good.

Other notes:

1. The electrolytic caps are IC brand - and have a bad rep. May be wise to change them all, giving the age of the amp.

2. There is a low voltage (16v) system to run the relays (The push buttons control relays to switch circuits). If you notice in pic web3, the two white power resistors are in an area that’s a bit burned. This area may not fail now, but if the buttons no longer work, this is the suspected circuit. the back is crispy. Suggest replacing the resistors to allow air flow under them. nd ensuring traces are still OK

For more information, please see the series on YouTube, starting at https://www.youtube.com/watch?v=n_Y5XPhTTkQ&t=2s

Estimate so far: Bench ($50) + 12AX7 ($22) + 500V/22uf cap($5) + 2 ea power resistors ($2) = $79 + tax (9.3%) There may be not be all the issues. There will be more testing after replacement of these parts.

Burning behind the power resistors