Tubes do have a wonderful appeal. I have a SET using EL34's that almost duplicates the SIT-2.
Power, distortion, damping are very similar. Bandwidth is wider on the SIT.
Carefully matched AB into a pair of OB Voxatives shows only small difference,
not enough to care about.
Of course that was largely the point of the SIT-2.
Mr. Pass i find France produced germanium triodes was in the 50's.
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In the 50's my mother worked on a production line making Germanium diodes.
Incredible story Mr. Pass and they was very beauty diodes who become germanium triodes à cristal 🙂
http://www.radiomuseum.org/forumdat...irst_french_diodes_transistor_final_rmorg.pdf
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And this is wire bonding at my company
https://youtu.be/ikVR31KpC4Y
Efficient machines
https://vimeo.com/76324044
Old school Tokins is science - fiction ?




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Good news today 
Matched pairs, quads of 2SK180 available from DiyAudio member CWTim01
http://www.diyaudio.com/forums/swap-meet/290687-fs-2sk180-2sk180c.html#post4966477

Matched pairs, quads of 2SK180 available from DiyAudio member CWTim01
http://www.diyaudio.com/forums/swap-meet/290687-fs-2sk180-2sk180c.html#post4966477
Big 300 | 500 watts SIT's is back available from both sources.
Japan seller accept your resonable price offerts.
watanabetomoaki | eBay
Japan seller accept your resonable price offerts.
watanabetomoaki | eBay
Care to Enlighten on the SE EL34 Amp
Nelson
Is the EL34 amp your creation or a store brought effort? Perhaps you could throw us "tubeophiles" a bone with a few more details....please, pretty please.
Tubes do have a wonderful appeal. I have a SET using EL34's that almost
duplicates the SIT-2.
Nelson
Is the EL34 amp your creation or a store brought effort? Perhaps you could throw us "tubeophiles" a bone with a few more details....please, pretty please.
It was a relatively inexpensive Chinese unit. It is no longer available,
but you can go to:
AliExpress.com - Online Shopping for Electronics, Fashion, Home & Garden, Toys & Sports, Automobiles from China.
and search for EL34 single ended amplifiers. They start at less than $200.
but you can go to:
AliExpress.com - Online Shopping for Electronics, Fashion, Home & Garden, Toys & Sports, Automobiles from China.
and search for EL34 single ended amplifiers. They start at less than $200.
In the 50's my mother worked on a production line making Germanium diodes.
So your father was a germanium diode. 😉
I can understand everything. 😀
1pc THF-51S TOKIN V-FET(SIT) (similar 2SK77,2SK180) NOS Original, Japan Made | eBay
1pc 2SK182E TOKIN Hi-Power Hi-Voltage V-FET(SIT) NOS Original, Made in Japan | eBay
400 watts | THF-51S is very quick triode transistor
only 50 nS switching time
1pc 2SK182E TOKIN Hi-Power Hi-Voltage V-FET(SIT) NOS Original, Made in Japan | eBay
400 watts | THF-51S is very quick triode transistor
only 50 nS switching time
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400 watts | THF-51S is very quick triode transistor
only 50 nS switching time
Less power, faster switching. If that's what you need....
only 50 nS switching time
Less power, faster switching. If that's what you need....
Tokin is much more powerful and have lot of gain if compare to Sony vfets.
On the other side have more input capacitance and distortion.
Just curious about THF-51S and 182E potential in amplification.
Quick switching = better sound ?
On the other side have more input capacitance and distortion.
Just curious about THF-51S and 182E potential in amplification.
Quick switching = better sound ?
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