ruffrecords
Well-known member
Anyone got a schematic for the Flickinger 535 op amp? I have scoured the web but cannot seem to find one.
Cheers
Ian
Cheers
Ian
PRR said:THAT one again?? (Or is this another Flick?)
Every time interest wanes and I archive it, someone stirs it up again.
ruffrecords said:Thanks for the schematic. Yes, something looks odd around Q4 and Q5.
Cheers
Ian
dogears said:Note this doesn’t sim properly in LTSpice so it’s not quite right.
dogears said:Here's what I used. Maybe you can find my goof.
mjrippe said:Are you saying there is a goof on the boards you are selling on ebay?
https://tinyurl.com/yajnf9t2
hitchhiker said:Why would he be reverse engineering from pics his own pcb? And be goofing it to boot?
PRR said:> with the transistors I had (2N5210 and 2N5087 with BD237/8 output) it was no bueno.
If you get the NPN/PNP polarities right, it will not matter what the transistor types are. High-hFE parts will give a lower THD number, but it will bias-up and pass clean audio with (NPN/PNP-sorted) scruff from old Sansui hi-fis.
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