Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Hoffman Turret and Eyelet Boards => Topic started by: EL34 on January 03, 2022, 10:14:21 am
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I created a parts list for a Fender AB763 AB763 Deluxe Reverb
This parts list for the Fender eyelet board layout
I jotted down notes as I was using the layout diagram to create the parts list
The layout diagram image I scribbled on is shown below
Here's the link to the Fender Eyelet Board page
https://hoffmanamps.com/MyStore/catalog/EyeletBoard.htm (https://hoffmanamps.com/MyStore/catalog/EyeletBoard.htm)
Here's the link to the layout diagram
https://el34world.com/charts/Schematics/files/fender/Fender_DELUXE_REVERB_AB763.pdf (https://el34world.com/charts/Schematics/files/fender/Fender_DELUXE_REVERB_AB763.pdf)
Here's the link to the parts list
https://hoffmanamps.com/MyStore/catalog/Fender_AB763_Deluxe_Reverb.htm (https://hoffmanamps.com/MyStore/catalog/Fender_AB763_Deluxe_Reverb.htm)
Notes:
If your power transformer does not have a center tap for the filaments, use two 100 ohm 1/2 watt resistors at the lamp assembly
Deluxe reverb does not have bright switches. If you want Bright switches you will need
2 x Bright switches and 2 x 120p capacitors - I stock both of these items
The 2200 ohm resistor on the 12AT7 reverb driver tube is a 3 watt
The 2 x 470 ohm screen grid resistors on the power tubes are 3 watt
The 25uf/50v bias capacitor is a 47uf/100v capacitor
The power cord, strain relief and cord clamp are on the parts list
The AC receptacle and .047 death cap have been removed
the 25uf/25v cathode caps are 22uf/50v caps on the parts list
I included 4 x RCA plugs and 6 feet of RG175 cable to make reverb cables
I included 2 x 1 ohm resistors so you can bias the power tubes
The Deluxe Reverb has 16/475v filter caps but other AB763 reverb amp may use 20uf and 100uf filter caps
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Note that the AB763 reverb amps are several different models
All of these amps are the AB763 Reverb circuit
Deluxe reverb, Vibrolux reverb, Bandmaster reverb, Pro reverb, Super reverb, Twin reverb and Dual Showman Reverb
Some parts may be different model to model, but they in the same exact spot
For example:
A twin reverb may have a .022 in the same spot as a .047 on another AB763 reverb amp
The Deluxe Reverb has 16/475v filter caps but other AB763 reverb amp may use 20uf and 100uf filter caps
Use the layout diagram for the amp you are building
You can use my parts list to create your own parts list