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Hoffman Amps Forum image Author Topic: Deluxe reverb reference voltages needed  (Read 5210 times)

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Offline Bieworm

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Deluxe reverb reference voltages needed
« on: October 07, 2020, 09:27:05 am »
Anybody happen to have the reference voltages of the B+ nodes and plate voltages?
Even better would be those voltages of the tone king imperial,  which I'm about to build.
Thanks
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Offline sluckey

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Re: Deluxe reverb reference voltages needed
« Reply #1 on: October 07, 2020, 09:35:11 am »
Here are my voltages...

     http://sluckeyamps.com/tdr/tdr.pdf
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Latole

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Re: Deluxe reverb reference voltages needed
« Reply #2 on: October 07, 2020, 09:37:38 am »
Wich DR ?  Vintage, modern ? There are all close

All voltages;

Scroll down a bit :

https://robrobinette.com/How_The_AB763_Deluxe_Reverb_Works.htm


Offline Bieworm

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Re: Deluxe reverb reference voltages needed
« Reply #3 on: October 07, 2020, 09:40:53 am »
Thanks guys!
Steve, I noticed you have 5 filter caps lined up in the power rail. The imperial has 4. Does a regular DR have 5 of em too or did you add one? Better filtering maybe?
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Offline sluckey

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Re: Deluxe reverb reference voltages needed
« Reply #4 on: October 07, 2020, 09:59:02 am »
Steve, I noticed you have 5 filter caps lined up in the power rail. The imperial has 4. Does a regular DR have 5 of em too or did you add one? Better filtering maybe?
The original DR has 5 caps too. The first two caps are connected parallel and function as a single cap, so there are really only four B+ nodes. Perhaps the imperial uses a larger single cap to replace the two parallel caps at the first node?

Can you post a schematic for the imperial?
 
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Offline Bieworm

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Re: Deluxe reverb reference voltages needed
« Reply #5 on: October 07, 2020, 10:15:08 am »
No, it's 4x 22uf450V caps.
« Last Edit: October 07, 2020, 10:17:37 am by Bieworm »
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Offline sluckey

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Re: Deluxe reverb reference voltages needed
« Reply #6 on: October 07, 2020, 11:17:34 am »
OK, I remember seeing that schematic recently. But what has the imperial got to do with voltages on a Deluxe Reverb? The only similarities is each amp has tubes and knobs.   :icon_biggrin:
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Bieworm

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Re: Deluxe reverb reference voltages needed
« Reply #7 on: October 07, 2020, 11:43:27 am »
OK, I remember seeing that schematic recently. But what has the imperial got to do with voltages on a Deluxe Reverb? The only similarities is each amp has tubes and knobs.   :icon_biggrin:
You're right. But the imperial is supposed to be based on the DR. Do that's my only reference. If anyone could hand me over the imperial 's voltages I'd be very grateful. 😁
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Offline sluckey

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Re: Deluxe reverb reference voltages needed
« Reply #8 on: October 07, 2020, 12:04:52 pm »
But the imperial is supposed to be based on the DR.
Whoever has that opinion has never compared the schematics of the two amps.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Bieworm

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Re: Deluxe reverb reference voltages needed
« Reply #9 on: October 07, 2020, 12:08:11 pm »
But the imperial is supposed to be based on the DR.
Whoever has that opinion has never compared the schematics of the two amps.
Ah crap...I bought all the components. I assumed the DR power TX and OTX...I guess.. we' ll see then?
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Offline sluckey

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Re: Deluxe reverb reference voltages needed
« Reply #10 on: October 07, 2020, 12:29:47 pm »
DR iron will work well for this project. You may have to get creative to power the relays.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Bieworm

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Re: Deluxe reverb reference voltages needed
« Reply #11 on: October 07, 2020, 01:00:41 pm »
I have a seperate 240VAC to 6VAC transformer for that. It's 6V power kit. The relays is a kit too. A double switching kit. 6V. For the reverb alignment with each channel I have to add an extra parallel relay to switch the reverb simultaneously with the channel switching. The 2nd relay is for the tremolo

The resistors are mostly Dales. And the caps are RS. Filter caps are F&T. Electrolytics are vishay. For tubes I chose all to be EHX.

Chassis is a blank. So I can put the components where I choose.. maybe you can help me out on that one..

PTX is classictone, OTX hammond 1750H, choke Hammond 194A, reverb tx is generic.
« Last Edit: October 07, 2020, 01:06:24 pm by Bieworm »
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Offline PRR

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Re: Deluxe reverb reference voltages needed
« Reply #12 on: October 07, 2020, 02:30:31 pm »
.... the imperial is supposed to be based on the DR....

Samurai 7 is supposed to be based on Seven Samurai. OK, rice farmers with sharp sticks, but more different than the same. ("7" doesn't even have a tomato rating.)

https://en.wikipedia.org/wiki/Samurai_7
https://en.wikipedia.org/wiki/Seven_Samurai

Why do you need voltages? Do you have any voltages? Voltage trends can be compared to Fenders of similar tube and resistor values. Exact voltages are not very important. You have knobs.

Offline Bieworm

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Re: Deluxe reverb reference voltages needed
« Reply #13 on: October 07, 2020, 02:42:43 pm »
.... the imperial is supposed to be based on the DR....

Samurai 7 is supposed to be based on Seven Samurai. OK, rice farmers with sharp sticks, but more different than the same. ("7" doesn't even have a tomato rating.)

https://en.wikipedia.org/wiki/Samurai_7
https://en.wikipedia.org/wiki/Seven_Samurai

Why do you need voltages? Do you have any voltages? Voltage trends can be compared to Fenders of similar tube and resistor values. Exact voltages are not very important. You have knobs.

Bullseye!!! The challenge is really exciting me in a good way. I'll let my ears decide. The right speaker is also really important. I have a few in mind..  1028k , g12h30 , g12 classic lead 80  .. I'm  biased towards a 2x12 with the g12h30 and the classic lead in a combo..
"This should be played at high volume.. preferably in a residential area"

 


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