25-04-2017, 05:59 PM
Hi.
Well I did some preliminary checks on the Eddystone today. I decided on a near to HKS approach as possible. The reason being the set has had work done in the past and I wanted as far as possible to see and hear what was good or bad. Most of the valves had lost their metalising to some extent so I had a look for some spares before I powered the set up. On closer inspection I found the crystal switch to be broken and most of the controls loose, I made sure there was no shorts and applied 120v from the variac for around 30 mins. The 6V6 was duff so that was the first to go. 150v and audio was strong from the 6Q7 top cap, no joy from the rf nor clicks from the first IF, another EF39 was fitted and at last some clicks from the bandwidth, at 210v there was noise but the IF was unstable. Signals could be heard so that's as far as I went. Big strip down tomorrow and the work commences. Pictures to follow.
Well I did some preliminary checks on the Eddystone today. I decided on a near to HKS approach as possible. The reason being the set has had work done in the past and I wanted as far as possible to see and hear what was good or bad. Most of the valves had lost their metalising to some extent so I had a look for some spares before I powered the set up. On closer inspection I found the crystal switch to be broken and most of the controls loose, I made sure there was no shorts and applied 120v from the variac for around 30 mins. The 6V6 was duff so that was the first to go. 150v and audio was strong from the 6Q7 top cap, no joy from the rf nor clicks from the first IF, another EF39 was fitted and at last some clicks from the bandwidth, at 210v there was noise but the IF was unstable. Signals could be heard so that's as far as I went. Big strip down tomorrow and the work commences. Pictures to follow.
