Deluxe Reverb iron ideas

[dcribbs1412]

Just wondering if anyone had any ideas for a build using
Deluxe Reverb PT and OT besides the Deluxe Reverb

my last build was a Princeton Reverb based amp
with Allen PT,OT and chassis...its nice
so I'm kinda looking for something a little different.

[tubeswell]

6G3?

[selloutrr]

add a filament transformer for the preamp tubes and make something with EL34's. The british tubes with american fender iron gives a nice tone.

[10thTx]

so I'm kinda looking for something a little different.

This would be a little different.

Soundclip (rhythm/lead is the amp and the lead is towards end of tune) here:
http://www.soundclick.com/player/single ... i&newref=1

If a pop-up comes up asking if you want to close the window, click "no".

With respect, 10thtx

[dcribbs1412]

Thanks guys

tubeswell wrote:

6G3?

good idea but my 5E3 might get mad and I'm not pissin her off



10thTx wrote:

This would be a little different.

Soundclip (rhythm/lead is the amp and the lead is towards end of tune) here:
http://www.soundclick.com/player/single ... i&newref=1

If a pop-up comes up asking if you want to close the window, click "no".

With respect, 10thtx

nice idea...great looking build...link to clip didn't work.

selloutrr wrote:

add a filament transformer for the preamp tubes and make something with EL34's. The british tubes with american fender iron gives a nice tone.

cool idea..maybe a low watt HRM with EL34's
I have a rat shack filament tranny
OT is 6.6k
PT is 660v 120ma
is this ok for 2 el34's?

[Zippy]

This would be a little different.

I like it a lot. My fav is a tweed Super that I use with Zen Drive. Your amp looks like one of my future builds - all the correct features.

What chassis are you using? SS or Al? I don't see a support for the power transformer and would be concerned when using a sufficiently beefy PT.

Could you share a picture of your control panel?

[selloutrr]

It should be fine. A HRM w/el34's would be cool

but a Deluxe reverb with some tasteful modifications
a master volume mod
sozo tone caps
pull pot mid boost
pull pot tone stack emulator
wire the reverb to work as a reverb or an extra gain stage. on a foot switch or pull pot
cascade the first gain stage.
El34's

I'd suggest you build the deluxe reverb to factory spec first then mod the circuit the changes are very easy and when using pull pots it looks stealth and no extra holes are drilled.

the reason you need an extra filament transformer to push the EL34's the amp draw is to high. It's not a voltage problem.

[dcribbs1412]

selloutrr wrote

I'd suggest you build the deluxe reverb to factory spec first then mod the circuit the changes are very easy and when using pull pots it looks stealth and no extra holes are drilled.

I'm thinking I want to try a el34 build
if I were to build something close to the accomplice layout from Allen
and add the mods would that be close to what you suggest?

selloutrr wrote

but a Deluxe reverb with some tasteful modifications
a master volume mod
sozo tone caps
pull pot mid boost
pull pot tone stack emulator
wire the reverb to work as a reverb or an extra gain stage. on a foot switch or pull pot
cascade the first gain stage.
El34's

master volume and mid boost I understand
not sure about the stack emulator,reverb/gain stage or cascade
will do some research/searching on these
sounds like what I'm looking for.

[selloutrr]

if you get a chance take a look at this book

Great Tube Amp and Guitar Mods
By Mike Thompson

if you are creative on amazon you can view it page by page
it'll give you a lot of interesting Mod's to voice the amp.

[KT66]

The current draw for 2 X EL34 would be over 200mA, which is well in excess of the 120 or so a DR PT can supply. You probably would even be asking for trouble using EL34s with typical Fender 6L6 iron. Also, even at a low plate voltage of say 430, the output would be around 50W which is way too big for a DR OT.

Another thing to consider, which really isn't that big of a deal, is that in the DR design a 25W OT is sufficient, but in other applications you may get more than 25W of output. For example, I built a good sounding Plexi with DR iron I obtained from Weber, but when the PPIMV was turned all the way up the OT core would saturate bad and it sounded like garbage.

On a completely different note, wanna know how to get some NOS 6V6s cheap ? Just get a 12V filament transformer and a set of these :
http://cgi.ebay.com/Pr-NOS-Tung-Sol-12V ... 1e5de7437a

[Ken Moon]

KT66 is correct. A 2xEL34 design just doesn't make sense for those trannies, since you'd have to add lots of series resistance before the plates and/or screens to stay within the PT's current rating, which wouldn't end up sounding very good IMO.

What type of "different" are you looking for?

And why are you attracted to the idea of EL34s?

You can make almost any type of amp, from a super-squishy blues amp, to a hard-edged death metal amp, to an ultra-clean jazz amp, using a pair of 6V6s - it just depends on the design of the amp. And the overall power of the amp will be based more on your transformers than the power tubes you choose.

What style of music would you use the amp for?

Is there a particular amp sound you'd like to get?

Answering these questions will help lead you to the right amp design.

Just as one example of what you can do with 6V6s, I make an amp called the Talon, which is designed to fill the niche somewhere between a TW Express and an SLO or other metal amp (I'd call it a "hard rock" amp).

I could have chosen just about any power tube, and designed it for basically the same tone and response - a couple of the reasons I chose the 6V6s were the desire for something in the 20 watt range, and the transformers are widely available and reasonably priced.

Just FYI, here's a link to the schematic - it's an extremely simple design:

http://moonguitaramps.com/images/talon_schematic.png

[labb]

Want something different then go to ddawgamps.com and take a look at the DD-30

[Ken Moon]

I agree that Brian's DD30 is a great amp, but the DR power tranny doesn't have enough current capability, so you'd need a different PT.

[labb]

I built it and subed 6V6's for the EL34's. Pretty nice amp.

[KT66]

Ken Moon wrote :

A 2xEL34 design just doesn't make sense for those trannies, since you'd have to add lots of series resistance before the plates and/or screens to stay within the PT's current rating

Even if you could use some trick to lower the Va, the datasheet for EL34s shows that at a Va of 300 they still would be drawing 190 mA at max Ia, so there is just no way to use a pair of them with the OPs PT. He could use that PT for a single ended EL34 amp, but then would need a new OT.

As for a "something different" build dcribbs, how about an EF86 based amp like a root 66, or maybe a 6V6 HiWatt ?