Dumbleator Trannies!!!

[Robert]

My tranny arrived today Funk. It looks great and was very well packed. Thanks again for taking the time to source them.

Robert

[Funkalicousgroove]

Enjoy!

Let me know if you have any questions.

Funk

[Bob-I]

Mine came yesterday. Thanks Funk

[heisthl]

Ditto - nice transformer - OBTW - the head and chassis I received from you in the same shipment are spectacular! Thanks

[tonejunkie]

My trannies got here quick they look nice. I also got a ODS chassis and it is awsome!!!! I can't wait to get the circuit in there.

Thanks

TJ

[Funkalicousgroove]

Enjoy them!!

Make sure you rectify Half-wave Bridge to get proper voltages per the original.

[Bob-I]

Enjoy them!!

Make sure you rectify Half-wave Bridge to get proper voltages per the original.

Um.... half wave or bridge?

[Funkalicousgroove]

Well, in the real deal the stand by switch conects one of the HT taps to ground for a standard half-wave configuration, but the other HT tap seems to be between 2 forward diodes, one with the negative to ground.

This pic is from the files section, and illustrates what I'm saing.

https://tubeamparchive.com/viewtopic.php?t=833


I'm sure you could ditch the un-necessary stand-by switch and rectify FWB and be just fine voltage wise, I just tend to build stuff as closely as I can.

[Bob-I]

Sounds like you're describing a voltage doubler, but I'm not quite sure.

[glasman]

Sounds like you're describing a voltage doubler, but I'm not quite sure.

The real thing used a half wave voltage doubler. Here is the basic schematic. I am not sure on the 100uf caps, but the rest is accurate.

Gary

[glasman]

Sounds like you're describing a voltage doubler, but I'm not quite sure.

The real thing used a half wave voltage doubler. Here is the basic schematic. I am not sure on the 100uf caps, but the rest is accurate.

Gary

The 100uf maybe 47uf ??? Still not 100% sure.

[heisthl]

Based on the size relation to those Nicholson 33uF/450 (which are fairly small in size compared to Spague). I'm guessing that 100uf/250V is probably close to right. I can't imagine a design with less filtering than that.

[toneman]

Package came and once again Funk you have surpassed all expectations thank you.

[v00d00blues79]

Funk,

I emailed about the transformer a couple of days ago and haven't heard back, so I thought i'd post a message here. I'm interested in one or two if they are still available.

Thanks,

Andy

[Funkalicousgroove]

If you have not yet paid for them I am all out at this time, I will most likeley be ordering more in the future, I will post when I do. 'Tis best not to dally as they do seem to go quickly.