Radio Ltd 8PL Tuning meter May 8, 2020 17:09:38 GMT 12
Post by Philconut on May 8, 2020 17:09:38 GMT 12
have just solved a conundrum that has been hanging around for about 30 years! I was given a radio by a long-time friend as she was clearing out her garage. It wasn't working. I spent some time getting it going and long story short, I could never work out what it was. I'm still not sure that the cabinet & chassis are a pair but the cabinet is very ornate with extensive marquetry and is very attractive. It has 2.5V filament valves with PP 45s in the output driving a 10" speaker. It goes well and we have had it as our radio at the bach in Akaroa for the intervening years. - no FM National radio over here. Well, I've had a bit of time on my hands lately, and spurred on by the on-going restoration of the Ultimate 9L, I launched an investigation into this one as there are many similarities. Like the 9L, the only marking is an 8PL & the serial number stamped into the back of the chassis. Also, the valve sockets are engraved with the valve types and the 80 is mounted on top of the power transformer. Voila. It is indeed an Ultimate and the NZVRS library has provided a circuit. Excellent! That's the preamble over. My question relates to the tuning meter shown on the circuit diagram attached. It measures the plate current for the RF & IF amplifiers. It isn't there & because the radio has been well altered from the original circuit, there is no evidence left. Does anyone know anything about tuning meters that RL used in 1934 and/or the cabinet origin.