|
#1
|
||||
|
||||
Quote:
If I had one of these players, I would operate it on AC power as much as possible due to the high current drain of the phono motor, not to mention the filament (A) and plate (B+) current drawn by the tubes. These players probably were the best available at the time but, as I said, due to the high current drain, I wouldn't think they were used as portables very much, except perhaps during power outages. I cannot quite imagine seeing anyone carrying one around as teenagers do nowadays with transistor portables (since those tube-operated RPs were so large), any more than I can imagine anyone having a large tube-operated RP with them at the beach, for instance. BTW, I just saw the specifications for the AC adapter, and was amazed how short the output cable is (15 inches). That short cable did not allow the user much of a choice as to where to put the adapter; that is, the latter would almost have to be quite close to the player itself. I wonder if an extension cable was available so this wouldn't be a problem. These players were not meant for high fidelity, RCA's "Golden Throat" logo of the 1950s notwithstanding, but that was probably just as well since the rock-and-roll music being played over the radio (and on records) at that time was nowhere near hi-fi to begin with. The phonograph cartridge was probably, almost certainly the cheapest available as well; after all, it would make little or no sense to to put a hi-fi cartridge in a record player which would be used to play rock and roll, not to mention other types of crazy music we hear these days.
__________________
Jeff, WB8NHV Collecting, restoring and enjoying vintage Zenith radios since 2002 Zenith. Gone, but not forgotten. Last edited by Jeffhs; 12-04-2021 at 12:21 PM. |
#2
|
||||
|
||||
Looking at the diagram there are no "bleeder" resistors on any of the supplies. I would imagine those 1.5 volt tubes could be damaged if the adapter were connected to the radio while charged up. Also, the instructions say to leave the radio power switch "on" and turn the system on and off with the switch on the adapter. Maybe that's why the cord was short, to make sure the adapter was near the radio for convenience. Could also be why the adapters are so hard to find, RCA got tired of warranty repairs when customers didn't follow the directions and stopped making the adapters.
|
#3
|
||||
|
||||
Quote:
|
|
|