Yes and yes….. The early VC3 units are getting old now and the input capacitors (which have to withstand the phantom voltage and have to be absolutely leak-proof) tend to go very slightly ‘soft’. This can cause all sorts of problems. I normally replace them as a matter of course nowadays.
Please just send the unit to me at 5 Bay court, 24 the Fairway and I will have a look at it. 
