Hot rod deville transformer?

[zimm]

Hi all, Im new to the amp building world. Learning a lot by reading the threads here. I had a question about using the transformer set out of a fender hot rod deville and fitting them into a D'lite style build. Would these transformers work well? Basically the Hot Rod is too loud for what I need (among other reasons I want to change out of the amp), so Im looking for something that I can run 6V6's through comfortably and get output of around 35watts. I know the JJ 6V6 can be put into a HRD but I have been told that the plate voltages are still hard on them and that the tubes do not last as long as 6L6's. Could these transformers be configured to output 30-40 watts?

Specifications for the OT are
Wattage : 60
Primary Impedance (Ohms): 4200 C.T.
Secondary Impedance (Ohms): 2/4/8
Mounting Centers : 2" x 3" vertical
Weight : 4.7 lbs

Power Transformer:

Primary: 117 volt, 60 Hz
Secondary: 450VDC, 270 mA after rectification
Filament winding 1: 6.3 VAC, 3.75 A
Mounting Centers: 2" x 2.5" horizontal
Weight: 7.4 lbs

[heisthl]

Those transformers will work fine (use 6L6es) and with the way the master volume works on this design you can turn it down to the 35 watt level and still be full range. If you're using a D'lite chassis you will have to block the hole for the power transformer because the Deville P.T. is an external mount.

[zimm]

Thanks, I think Im gonna just sell the deville and build a "D'lite"-ish amp based on other builds. Seems like the Deville components are less than optimal, no sense in tearing up a functional amp if I can only use a small percentage of the parts from it.

[Stanz]

I built a non-HRM 2 6L6 ODS usnig the chassis, transformers and cabinet of a Hot Rod Deluxe. Works great.

[zimm]

Do you have any sound clips? I tried searching but couldnt find any. Ill look at the ods schematics and see whats required. I know there is a lot of printed circuit board and ribbon cable in the HRDeville, I am assuming that has to/should come out.

[Stanz]

Here is a clip I threw together. It basically is me masturbating, I mean playing my heart out over the Althrax Minor Blues backing clip. The approach was more about showing different tones I can get. It is all guitar and amp, no fx either on the amp or post production. A dear friend of mine who is an incredible guitar player but is very technologically challenged described the amp as being able to play all the strings and notes evenly with a nice even feedback.

Set up:
ODS non-HRM converted from Hot Rod Deluxe (That has turned out to be a no brainer move)

Speaker G12-65
Volume 4 (10 o'cock)
Drive 3.5 (9:30)
Master 7 (1 o'clock)

Mic SM-57 one inch off speaker grill slightly off center but on axis.
Into Mackie board into computer at 44.1K 24 bit
Bridge pickup is double coil
Neck pickup is switched to single coil



8x through the song

Part 1
#1 - Clean / neck PU

#2 - OD / neck PU

#3 - OD PAB / bridge PU

#4 - OD / bridge PU


Part 2
#5 - OD neck PU

#6 - Clean / neck PU

#7 - OD / bridge PU

#8 - OD / neck PU

Please excuse some of the stumbles. There are some good licks, but it is not a smooth take by any means.

Brian

[zimm]

Thanks for posting that, it sounds pretty good. I think Ill try modding the deville. Im gonna pretty much gut the chassis and just use the transformers, chassis, cabinet, and tube sockets. The rest will be built to ODS, Hybrid-A, or D'lite specs. Im gonna keep reading and come back with some questions regarding which layout might work best for this amp. Seems like the straight up ODS design might be overkill for what I need.

[zimm]

I gutted the deville and now I have a question on wiring the power transformer. I have decided to start with a Dlite build and mod from there. On the PT there is a black wire, white, a pair of reds, pair of greens , a pair of browns, and one brown with yellow stripe. My question is what to do with the browns? Would these be the ones I use for wiring up relays? If Im not installing then I just cap them off right? Lastly, where does the brown with yellow stripe go? Bias circuit?


Here is a link to the deville schematics:
http://studentweb.eku.edu/justin_holton/faq.html

Thanks for any advice.

[tonelab2]

Bias CT.
Tape up and tuck under PT end cap. Ground 1 brown to chassis, the other brown use as bias supply.

[zimm]

So just to be clear, brown yellow to bias, one solid brown to ground, other solid brown capped and taped?

[heisthl]

I would bet that BN/YE is the CT and should be Grounded. Look at the Deville Schemo. The Other brown wire would not be used unless you rig up a relay supply with it. http://www.epanorama.net/schematicsforf ... ematic.pdf

[tonelab2]

heisthl is right , the brown/yellow is CT. I'm doing a build with Blues Deville PT which I think is same. One side of tap is used with voltage doubler for bias, the other side used for supply for op amps. To simplify I taped CT, tied one brown to ground leaving remaining Brown wire with 51Vac for bias. I think if you use CT then use 1 side for bias and other side for relay you may need to use voltage doubler for bias side to get enough volts. I could be wrong though.

[zimm]

Makes more sense now. So you do not think there is enough voltage to use the CT? Do you know the voltage requirement for the bias circuit? Only reason I ask is Im wondering what my options are for adding the relay circuit either now or in the future. Thanks a ton for your help.

[zimm]

Also, I had a question regarding filter caps. Is it OK to stick with the 450V 22uf spec'd in the Dlite schem or should they be larger, like 500V 22uf? I ordered sprague 450V/20uf but I am wondering if they should have been 500V instead? Thanks.

[heisthl]

Also, I had a question regarding filter caps. Is it OK to stick with the 450V 22uf spec'd in the Dlite schem or should they be larger, like 500V 22uf? I ordered sprague 450V/20uf but I am wondering if they should have been 500V instead? Thanks.

At a minimum you should mimic the first 2 nodes of the Devilles' power supply. 485v B+ is what you should expect and also notice that it's a full wave bridge.