Discussion in 'Audio Hardware' started by Robin L, Aug 12, 2015.
The Realistic STA-2200 receiver uses MOSFETs. Sounds nice too.
I ended up with this Realistic 33-1057a, a little later I suspect, but similar stuff inside? I noticed the schematic of the 42-2101 calls for C1327 transistors, mine has C1815 transistors, are these also a FET? Would you suspect this preamp is comparable to the 2101 or 2101a sonically?
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I have the 42-2101A and believe it uses a pair of BJT NPN transistors for each channel.
the 42-2101a and 42-2109 upgraded are excellent, they perform way past there value!!
Would you mind sharing how it's been upgraded? Re-cap, power supply, etc.
Here's my attempt at making the schematic diagram for this thing legible
Thanks harby, appreciate that.
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