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February 18th, 2018 9:48
Long time ago I read about an interesting diagram of a regulated power supply in the Radio Amateurs Handbook (1965). Capable of delivering 160mA at 300Volts, this could power both my riaa-correction pre-pre and
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February 11th, 2018 20:19
Mint condition, Denon's top model from the last era..
Denon DCD-S1
Click here for more details..  Read more...
February 10th, 2018 11:59
Just a nice picture of the operational amplifier..
Telefunken RV218 and AL4
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January 7th, 2018 10:32
I was always curious about performance of a higher priced cartridge in my system. Not many distribitors or retail handlers allow this as a cartridge is easily damaged and once it is used, it obviously c
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January 2nd, 2018 12:00
A nice comparison between mesh- and solidplate, directly- and indirectly heated rectifiers.
From left to right: RGN4004, UU5, unknown (British?) and 2B-400.
Valve rectifiers
So, the unknown (probably British made) is th  Read more...