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Sideband · 8th May 2022, 5:05 pm

Well It's for Wrotham I think which indicates London area. The R2, R3, R4 markings must have been added after 1967. I'm inclined to think mid-60's as well. The problem with home brew is that it could have been made anytime during the 60's or even early 70's. possibly the OC170 was being offered cheap by then since the AF11x was appearing. I'm still impressed by the tobacco tin I.F amp though!

I'm assuming the amplifier part was built at roughly the same time so that might give more clues.

8th May 2022, 5:05 pm	#4
Sideband Dekatron Join Date: Oct 2003 Location: Croydon, Surrey, UK. Posts: 7,580	Re: Homebrew tuner from Richard GM thread Well It's for Wrotham I think which indicates London area. The R2, R3, R4 markings must have been added after 1967. I'm inclined to think mid-60's as well. The problem with home brew is that it could have been made anytime during the 60's or even early 70's. possibly the OC170 was being offered cheap by then since the AF11x was appearing. I'm still impressed by the tobacco tin I.F amp though! I'm assuming the amplifier part was built at roughly the same time so that might give more clues. __________________ There are lots of brilliant keyboard players and then there is Rick Wakeman.....