I just ordered a couple sets of the Edcor XSE10-8-5Ks and lead time is out to 8 weeks.
My Wife's powered speakers on her computer are on the fritz, so I figure it is an opportunity to build a small SE stereo amp as a replacement.
Who is ordering all the transformers?
My Wife's powered speakers on her computer are on the fritz, so I figure it is an opportunity to build a small SE stereo amp as a replacement.
Who is ordering all the transformers?
Edcor has other customers that order big quantities. They make these small quantity and 1-off designs for the DIY and specialty business community, but we have to wait for them to have time. The big accounts get priority and that's fine with me given their pricing to us.
Why they don't stock their more popular OPTs, I don't know. I wish they would, but again keeping inventory costs money...cost that has to be passed on to us.
Why they don't stock their more popular OPTs, I don't know. I wish they would, but again keeping inventory costs money...cost that has to be passed on to us.
I bought a couple of Edcor's a little while back. They quoted me a lead time but the transformers showed quite a bit sooner than quoted.
Yeah....
You have to be patient if you want Edcor. The good news is the iron for my Millett DCPP is on the way (almost 7 weeks after I ordered). I should have the red board singing by this weekend.
Bad news is the xfmrs I ordered for my Tubelab Simple Push-Pull will arrive sometime in June!!
You have to be patient if you want Edcor. The good news is the iron for my Millett DCPP is on the way (almost 7 weeks after I ordered). I should have the red board singing by this weekend.
Bad news is the xfmrs I ordered for my Tubelab Simple Push-Pull will arrive sometime in June!!
Hopefully this does not violate any posting regs.
I vaguely remember the cartoon from the 70s, although I don't remember what magazine it was in.
Last edited:
For SE transformer also you can check SE output transformers - ERTOCO | toroidal transformers
Price and quality balanced.
Price and quality balanced.
Always interested in SE OPTs, so fine to revive an old thread.
For me it isn't a question of "cheap" - more like "value for money". I think some of the best for value right now are the Lundahl LL1663, LL1664, LL1682. Basically the same OPT with different primaries. I've been enjoying the LL1682/50mA in my 4P1L SET. It's certainly a good sounding transformer, and about the correct price for the quality you get. I'm in Europe so can get slightly better prices.
I'd like to know if there's anything better for that price - around $300 a pair.
The small James 10 watters JS-6112, 6113, 6115 are $169 and the medium JS-6123 is $212 but haven't heard them. Probably also worth the money.
For me it isn't a question of "cheap" - more like "value for money". I think some of the best for value right now are the Lundahl LL1663, LL1664, LL1682. Basically the same OPT with different primaries. I've been enjoying the LL1682/50mA in my 4P1L SET. It's certainly a good sounding transformer, and about the correct price for the quality you get. I'm in Europe so can get slightly better prices.
I'd like to know if there's anything better for that price - around $300 a pair.
The small James 10 watters JS-6112, 6113, 6115 are $169 and the medium JS-6123 is $212 but haven't heard them. Probably also worth the money.
More detailed specifications and test results would be interesting to see.
At the moment I think Toroidy from Poland has excellent price/quality.
I have nor built anything with Lundahl so I can not evaluate those, but price is 2...3 times higher than Toroidy.
At the moment I think Toroidy from Poland has excellent price/quality.
I have nor built anything with Lundahl so I can not evaluate those, but price is 2...3 times higher than Toroidy.
I've been using EDCOR GXSE single ended output transformers for years now.
As long as you do not have to go much below 40hz, they are solid performers for not much money.
Steve
As long as you do not have to go much below 40hz, they are solid performers for not much money.
Steve
Hi Artosalo,
Have you tested their transformers? I ordered some PP for EL84, they will be shipped soon, and I am quite curious about their performance.
best regards,
Erik
Hi,
I have tested these two types:
TTG-6C33CPP - Tube output transformer for 2x6C33C Push-pull or similar - Shop Toroidy.pl
TTG-EL34PP - Tube output transformer for 2xEL34 / 2x6L6 Push-pull or similar - Shop Toroidy.pl
The first one 1.2 k version was tested with EL509 Circlotron and the second 6k6 version with "ordinary" EL34 UL-PP amplifier.
Both transformers have at least the same performance than Edcor's CXPP series equivalents.
I have tested these two types:
TTG-6C33CPP - Tube output transformer for 2x6C33C Push-pull or similar - Shop Toroidy.pl
TTG-EL34PP - Tube output transformer for 2xEL34 / 2x6L6 Push-pull or similar - Shop Toroidy.pl
The first one 1.2 k version was tested with EL509 Circlotron and the second 6k6 version with "ordinary" EL34 UL-PP amplifier.
Both transformers have at least the same performance than Edcor's CXPP series equivalents.
I have used this TTG-EL34PSE - Tube output UL transformer for EL34 / 6L6 PSE - Shop Toroidy.pl
In this cathode follower SE-power amp: (in finnish)
Tee itse Revenge PL 504 Single End - katodiseuraaja-putkipäätevahvistimen rakennusohje | AudioVideo.fi
I havent measured anythign yet, but they did their job and sounded nice (which is of course subjective) 🙂
Oh wow.. they have a SE one with 5K primary impedance:
TTG-EL84SE - Tube output UL transformer for EL84 / 6V6 SE - Shop Toroidy.pl
Primary inductance of 27.5 Hy too.. not bad! 🙂
At current exchage rate the price is NICE. Very tempting...
TTG-EL84SE - Tube output UL transformer for EL84 / 6V6 SE - Shop Toroidy.pl
Primary inductance of 27.5 Hy too.. not bad! 🙂
At current exchage rate the price is NICE. Very tempting...
hi Ian
I ordered some PP plus filter chokes from them, they should be shipped today. No SE, but at least I can try the choke to see how it behaves with DC current applied, always a challenge for toroids and possibly an indication if SE OPTs will work. If results are good, I may order some other goodies, and maybe we split costs?
As always, I am curious what the DPD will charge for importing the materials in CH.
Best regards, Erik
I ordered some PP plus filter chokes from them, they should be shipped today. No SE, but at least I can try the choke to see how it behaves with DC current applied, always a challenge for toroids and possibly an indication if SE OPTs will work. If results are good, I may order some other goodies, and maybe we split costs?
As always, I am curious what the DPD will charge for importing the materials in CH.
Best regards, Erik
Could we update this thread
Hi all,
I know this is an old thread but rather than starting a new one for the same topic, I thought I would revive this one. It's been 15 years and some of the mfrs are gone, part numbers have changed etc.
I have decided to build a single ended tube amp, not sure which output tube yet but I have lots to choose from in stock. Under consideration are 2A3, 211, (242C, 276A, 261A all same size as 211). I would also consider 300B but would have to buy those, I have all the others I listed.
I have been looking around and re-reading this thread and have found Edcor and Transcendar are still in business, James seems to be gone and some of the others mentioned are getting hard to find.
So what is currently a decent quality SE output xfmr, either Asian or North American? Not looking for specific part numbers, more of a survey of current suppliers. Also don't want to buy the old classic megabuck partridges etc. I see on epay for a kilobuck per pair. Would be nice to find good ones less than $100 ea.
My other thought is to find an inexpensive already built amp with one of the listed tubes, then mod the crap out of it, or gut it and put in my own circuit and use the chassis and xfmrs etc.
Look forward to hearing your recommendations.
Cheers
Hi all,
I know this is an old thread but rather than starting a new one for the same topic, I thought I would revive this one. It's been 15 years and some of the mfrs are gone, part numbers have changed etc.
I have decided to build a single ended tube amp, not sure which output tube yet but I have lots to choose from in stock. Under consideration are 2A3, 211, (242C, 276A, 261A all same size as 211). I would also consider 300B but would have to buy those, I have all the others I listed.
I have been looking around and re-reading this thread and have found Edcor and Transcendar are still in business, James seems to be gone and some of the others mentioned are getting hard to find.
So what is currently a decent quality SE output xfmr, either Asian or North American? Not looking for specific part numbers, more of a survey of current suppliers. Also don't want to buy the old classic megabuck partridges etc. I see on epay for a kilobuck per pair. Would be nice to find good ones less than $100 ea.
My other thought is to find an inexpensive already built amp with one of the listed tubes, then mod the crap out of it, or gut it and put in my own circuit and use the chassis and xfmrs etc.
Look forward to hearing your recommendations.
Cheers
