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Old 22nd Dec 2018, 5:58 am   #8
TonyDuell
Dekatron
 
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,190
Default Re: Trio 9R-59 Shortwave Receiver

This is the original 9R-59 with the horizontal tuning dial. Actually 2 dials one above the other, the main dial and the bandspread (the usual electrical arrangement of 2 variable capacitors in parallel).

The KT-340 looks identical from that photo and the features match up. Mine is a 9 valve set too. Mostly B7G base with an octal-based rectifier. I am a little bothered by the description of the 'semi-kit'. If the 'RF section' is what I call the coil pack I can understand it. If it means the RF valves and maybe the IF amplifier have been wired then there is little more to do AND it's a lot harder to work on the audio section when the coil pack is in place (which is why I removed it when working on my set).

As for what next (in terms of radio), probably some domestic sets. I have a few to work on. But most are AC/DC types so the next job is to make an isolating transformer unit.
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