Re: Quad 303 pop on switch on
A quick update now - i have replaced TR1 with a spare genuine RCA one I had and have now replaced the output capacitors with 4700mf - it still pops in one channel(left) on first turn on but is more muted now so I guess related to the capacitors. It is less alarming now so will leave at that but still curious why it should be an anomaly with this amp and not the others. In the interim i have acquired some high end Dada boards via e bay. One board has a fault which i am working through but will start another thread on that.
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