02-20-2023, 08:02 PM
Hi Arran and Morzh,
If those GE sets were built between 1931 and 1934, they were built by RCA. My GE S-22A is an RCA. The GE label is slapped right over the RCA R-7a label. Same with the Westinghouse version. Those W'house Columnaires were Radiola 80s with a clock. My S22 has Marshon wet electrolytics, but your filters are in the "Cap Pack located on the left front of the chassis. RCA did use dry 'lytics in some sets in 1933. (my R-28 has a dry lytic cap. Hope that the Cap Pack is not potted but I don't hold much hope for that. Per the RCA Red Book for the R73 has filters of 12uF before the field coil and 8uF after. Field coil is in the B- leg of the power supply instead of the B+ which was RCAs habit for previous models like the Radiola 80
Frequencies higher than about 1,550KHz were reserved for police and marine bands. Only after they moved police up to FM did they extend the range of the broadcast band to 1,700 KHz That's why the R73 tops out at that frequency.
If those GE sets were built between 1931 and 1934, they were built by RCA. My GE S-22A is an RCA. The GE label is slapped right over the RCA R-7a label. Same with the Westinghouse version. Those W'house Columnaires were Radiola 80s with a clock. My S22 has Marshon wet electrolytics, but your filters are in the "Cap Pack located on the left front of the chassis. RCA did use dry 'lytics in some sets in 1933. (my R-28 has a dry lytic cap. Hope that the Cap Pack is not potted but I don't hold much hope for that. Per the RCA Red Book for the R73 has filters of 12uF before the field coil and 8uF after. Field coil is in the B- leg of the power supply instead of the B+ which was RCAs habit for previous models like the Radiola 80
Frequencies higher than about 1,550KHz were reserved for police and marine bands. Only after they moved police up to FM did they extend the range of the broadcast band to 1,700 KHz That's why the R73 tops out at that frequency.
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
Best Regards,
MrFixr55