[Paul Stenning]

Remember that these resistors are 20% tolerance anyway, so up to around 25% high should be fine. I would only replace those which are very high, not those that are just a bit out of tolerance.

The main thing to change with these sets and others of this era is all the little black and brown hunts capacitors and any wax-paper capacitors. These will be causing a lot more odd issues such as poor reception and instability.

The VHF81 is a great sounding and performing set when fully sorted.