I'd go in on a transformer GB. Also can't help but to think some kind of arrangement for pooling vfets for matching would be extremely neat. If someone had the knowledge, equipment and courage to handle the little unicorns for such an effort. May be wishful thinking.
Edit- Though it isn't necessary at this point. Would be nice to prepare for paralleling devices in part 2.
Edit- Though it isn't necessary at this point. Would be nice to prepare for paralleling devices in part 2.
Last edited:
JENSEN TRANSFORMERS, INC. - PRODUCT PRICING
The cost for one to three units is 37.78U$
More than 48units the price fall to 27.65U$
If any interested in make a GB for it, I never did previously but I offer my time for.
The cost for one to three units is 37.78U$
More than 48units the price fall to 27.65U$
If any interested in make a GB for it, I never did previously but I offer my time for.
On the Jensen website, it says call for pricing on 100 units or more. I wouldn't be at all surprised if a GB exceeded 100 units, so it might be worth calling (or emailing) to find out pricing at that quantity. One never knows, if we let them know the parts are for a GB off the DIYAudio site, maybe they'd even give a better discount.
Last edited:
With the few transformer coupled amps I have played with, source degeneration seems to detract from sound more than overall loop feedback, as odd as that may sound. Something about letting those output transistors run free makes for wonderful presentation. I wish I could figure out how to do this with small signal fets, buti don't know of any that have the stability that is found in the Vfets and the SS fets. Any suggestions.
Dady,
Thank you for checking with Jensen.
It may be easier logistically if the GB runs out of the US to avoid shipping
the transformers to Europe and shipping them back to North America.
But that's probably something to consider once more on the interest level of
members.
Dennis
Thank you for checking with Jensen.
It may be easier logistically if the GB runs out of the US to avoid shipping
the transformers to Europe and shipping them back to North America.
But that's probably something to consider once more on the interest level of
members.
Dennis
Oh yes! I suppose that Jensen is on England but in my unconscious I was guessing in Sowter. Yes you right the GB must start in Northamerica. Anyway when they answer the email I will bring the charge to your influence area.
Best Regards
Best Regards
Is that information correct?
Because the JT-123-FLPCH is a 1:1 configuration and the JT-112-LCF is a 1:2 transformer.
I think the step-up is needed in this application.
The transformer needs 4 identical windings. I wouldn't go looking for a
step up, which as I recall, both have.
😎
step up, which as I recall, both have.
😎
The take-away here is "four identical windings". I've seen a model or two mentioned in this thread that only have two windings.
- Status
- Not open for further replies.