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Old 18th January 2005, 12:03 AM   #101
yahzdi is offline yahzdi  United States
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Default Quicksilver KT 88 schematic

Here is a work in proress schematic of my stock KT88 without power supply section. Some values missing and no guarantees, but it may be useful.
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File Type: pdf visio-quicksilver kt88 schematic.pdf (23.3 KB, 354 views)
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Old 18th January 2005, 12:17 AM   #102
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I don't see it
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Old 18th January 2005, 11:18 AM   #103
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But now I do
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Old 8th February 2005, 08:03 PM   #104
yahzdi is offline yahzdi  United States
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Default Quicksilver KT88 Schematic

There were definitely some circuit drawing errors in the previous PDF file. I have corrected them and here is the result. The pink rectangular things referred to are probably the mica caps reffered to earlier. The exact wiring around the bias jack is probably not quite right, but it is close enough to get the idea. The source file is in Microsoft Visio. I will send it to you if you want it. Contact me at yahzdi@pointroberts.net.
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File Type: pdf quicksilver kt88 schematic corrected.pdf (24.2 KB, 186 views)
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Old 8th February 2005, 08:50 PM   #105
yahzdi is offline yahzdi  United States
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Once I put it out there for comment it occurred to me it would be useful to label everything for reference. I also made the mystery component a cap instead of a diode.
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File Type: pdf quicksilver kt88 schematic corrected and annotated.pdf (24.5 KB, 293 views)
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Old 9th February 2005, 06:38 AM   #106
yahzdi is offline yahzdi  United States
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Default Quicksilver KT88 schematic

Now I know this is a really old thread, but I would appreciate suggestions for tweaking these amps. Currently I am planning on replacing the .27uf coupling caps with .22 and .047 multicap RTXs in parallel. Also replacing the input bridge resistors with Vishay S102s (at $24 each), and the R15 and R16 signal path resistors with Kiwame 2 watt carbon film resistors. I am putting Vampire CMF2/OFC RCA jacks in and wiring the new connectors with silver wire. Most of these ideas came from this thread. Comments please. Thanks.
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Old 12th March 2014, 01:30 PM   #107
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Anyone still recommend the quicksilver amplifier ?

Anyone still use one ?

Bladesmith
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Old 12th March 2014, 11:14 PM   #108
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Hi,

OMG, this thread is old....

IMHO the QS are still a great sounding tube amps.
All the tubes are still manufactured so there's no problem running one for years to come.

Ciao,
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