Does anyone know where I can get an SE output transformer with 5k primary and 8-16-32-150-300-600 secondaries ?
I want to be able to use my 55 ohm AKG headphones and some 600ohm sennheiser headphones but I also want to be able to play some 8-16ohm single driver desk top speakers.
I could have Edcor custom make them but before I do I'd like to find out if they already exist. The trans would be something like this from DHTrob.
http://www.dhtrob.com/schemas/gallery/photos/HeadPhone/CV4079 SE TX Wiring.GIF
I want to be able to use my 55 ohm AKG headphones and some 600ohm sennheiser headphones but I also want to be able to play some 8-16ohm single driver desk top speakers.
I could have Edcor custom make them but before I do I'd like to find out if they already exist. The trans would be something like this from DHTrob.
http://www.dhtrob.com/schemas/gallery/photos/HeadPhone/CV4079 SE TX Wiring.GIF
Why not use the same xformer then Rob uses.
Its from AE-Europe:Home Engels - Automatic Electric Europe - transformatoren
Have fun,
Hilmar
Its from AE-Europe:Home Engels - Automatic Electric Europe - transformatoren
Have fun,
Hilmar
I looked at that, i can't find it on there website, I think Rob may have had it custom wound and I don't know German so ordering would be a bit tough.
How many watts are you shooting for? I'm working on a flea-watt design with 6y6's and wanted to do something similar but I've run in to the same issue. While it isn't hard to find something for 8-16-32 speakers, finding something that includes 150-300-600 is more difficult.
Remember also that the reflected impedance is a function of the load, not something intrinsic to the transformer. If you can find something with the right ratios, you may not need as many output taps.
Remember also that the reflected impedance is a function of the load, not something intrinsic to the transformer. If you can find something with the right ratios, you may not need as many output taps.
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I'm looking at around 2.5 - 5 watts so I'd like around a 10 watt transformer so I have some head room Mine will be a 6V6 - 6SL7 SE amp
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Yeah they do I can get 50 ohms or 600 ohms but I really want more versitility and I want to be able to play the amp through some desk top speakers when I'm in the office by my self.
Hi Mark,
send an email to AE-Europe. You can write in English, they speak English 100times better then me🙂
They have a lots of things that don´t show on their website.
The quality is outstanding.
Good luck,
Hilmar
send an email to AE-Europe. You can write in English, they speak English 100times better then me🙂
They have a lots of things that don´t show on their website.
The quality is outstanding.
Good luck,
Hilmar
Mark,
I ordered a pair of SE OT for Jack at ElectraPrint. It is only 2W at 25Hz, 35mA gapped, and I measured 380 ohms DCR primary and 6ohms DCR each secondary. I asked for two 32 ohms secondaries (series is 128 Ohms, parallel is 32 ohms). You can order with two or more secondaries of 8 ohm. This way you can get 1x8 (parallel), 4x8(parallel-parallel), 9x8(parallel-series),, 16x8 ohms (series). I believe that having non-tapped secondaries will offer a more consistent frequency response. In my case I have 26Hz-30kHz(-1dB) for 32 ohms and 29Hz-35kHz(-1dB) for 128 ohms.
Best,
Radu
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