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 Successfully cloned Kriesler 11-104
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 Return to top of page · Post #: 1 · Written at 9:23:04 AM on 26 February 2017.
Zeerust's Gravatar
 Zeerust
 Location: Sydney, NSW
 Member since 29 September 2016
 Member #: 1979
 Postcount: 52

If anyone's interested, I built a clone of the amplifier circuit in my much loved Kriesler Multisonic Stereo. Pretty straightfoward, but I used EL84 valves in place of the 6M5s, and had to tweak the power supply resistor values a bit. I used a Hammond 370JX for the power transformer and Hammond 125CSEs for the OTs. If anything, it sounds better than the original. I'd recommend it if you want a low power system for lounge room use.
 
 Return to top of page · Post #: 2 · Written at 6:58:25 PM on 26 February 2017.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6687

Interesting project. What was your motivation? I'm guessing it wasn't merely to avoid the 6M5s (with pin changes 6BQ5's can be used)
 
 Return to top of page · Post #: 3 · Written at 11:10:25 PM on 26 February 2017.
Zeerust's Gravatar
 Zeerust
 Location: Sydney, NSW
 Member since 29 September 2016
 Member #: 1979
 Postcount: 52

I like the sound of the Kriesler so much that I wanted to be sure I could reproduce it with current production parts if I ever needed. I did use an EZ80 for the rectifier, but a current valve could be used if the power supply was redesigned. Besides, what's life without a challenge or two. Plus I get to see the valves glow while it's on.
 
 Return to top of page · Post #: 4 · Written at 12:26:24 AM on 27 February 2017.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6687

Fair enough Smile
 
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