Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Gainzilla on October 08, 2015, 06:41:29 pm

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: Gainzilla on October 08, 2015, 06:41:29 pm

I have a Hot Rod Deluxe with a non-working circuit board. Transformers are in working condition. I was considering building a 40watt Mesa Lonestar clean channel, but it looks spookily similar to this. So now I'm thinking I'll build the AB763 single channel w/ reverb into this chassis. Do-able? If so, any chance you could make a tube-mount board ala your Blues Jr. retrofit, or would it be easier to keep the existing and sort out the wiring harness connections?



Thanks in advance!

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on October 09, 2015, 06:40:16 am

I don't know anything about that amp
Maybe the guys here can help


I don't do custom one off stuff

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: Gainzilla on October 09, 2015, 10:07:32 am

Thanks anyway, Doug. So what do you think, guys and gals? Is the Fender Hot Rod Deluxe a good donor platform for Doug's Single channel AB763 with reverb?

Cheers!

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: sluckey on October 09, 2015, 10:39:24 am

I think so. Putting a 3 1/8" board in a tweed style chassis can be a challenge depending on how wide your chassis is. My TDR is a single channel AB763 with reverb. I used a 2 1/4" board inside a 4" x 3" x 17" chassis. It was tight.

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on October 09, 2015, 10:58:11 am

You should be able to look at my Blues Junior build page and compare what you have to that

How different can all these new Fender chassis be?

http://el34world.com/Hoffman/Blues_Junior_Build.htm (http://el34world.com/Hoffman/Blues_Junior_Build.htm)

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: Gainzilla on October 09, 2015, 01:48:04 pm

Looks like the board is 13" x 3.125". Does that sound right? If so, I'll just pull the chassis and measure it. :)


Thanks!

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on October 09, 2015, 02:48:07 pm

The BJ Board?


The size is listed on my catalog page
The link is on the BJ build page

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: Gainzilla on October 09, 2015, 03:36:19 pm

Sorry, this is what happens when you post on forums at work.


Ok, let me clarify. I looked at the post about the Blues Jr. Conversion and it looks like there is plenty of room. I'm asking to clarify the size of the AB763 Single Channel board. I think your boards are 3.125" wide, and the length is listed as 13". Assuming the width is correct, I'm looking at a 13 x 3.125 board. Is this correct?


I'll make a cardboard mockup and check it inside the chassis to verify.


Thanks!

Title: Re: Fender AB763 Reverb One Channel Eyelet board
Post by: EL34 on October 09, 2015, 05:12:53 pm

Yes, the board lengths are correct on this page for all my boards
http://hoffmanamps.com/MyStore/catalog/TurretBoard.htm (http://hoffmanamps.com/MyStore/catalog/TurretBoard.htm)

You can go to the library page and print the turret board to scale from the PDF file
http://el34world.com/schematics.htm#Hoffman_AB763_One_Channel_ (http://el34world.com/schematics.htm#Hoffman_AB763_One_Channel_)