How do old tube radios work?
By Scarlett Howard
How do old tube radios work?
In this five-tube AC/DC radio, the antenna picks up the transmissions and couples them through a set of antenna coils which are switched depending on whether you’re listening to mediumwave broadcast signals or one of the shortwave bands, and help to pre-select the signal going into the next stage of the radio to reduce …
Can you still get tubes for old radios?
A market still exists for early tubes. Radio restorers are always on the lookout for 01A tubes ($10-$15) used in most 1920s radios. These tubes also used the numbers 201A and 301A depending on the manufacturer.
What happens when you plug in an old radio?
If your radio has a large power transformer, check to see that it hasn’t overheated and melted the potting tar out from the insides. This generally means a burned out transformer and a dead radio, and is one of the most common outcomes if you plug in a radio you’ve found without refurbishing it first.
How long does it take to download Westinghouse schematics?
For Westinghouse models not listed below see the Westinghouse schematics available from other service publishers here. It normally takes up to 24 hours to receive the download instructions via email but please allow 1 – 2 business days. If your model or chassis is not listed contact me for availability.
How many pages are in a Westinghouse service manual?
These are schematics and service information scanned in high resolution directly from the original U.S. Westinghouse Factory Service Manuals. Files are typically two to four pages or more of factory service information including schematics and parts lists. Record changer manuals may be several pages and must be ordered separately.
What’s the difference between fixing up a vintage radio?
Fixing up a vintage radio is a little different from fixing up many other types of gear, since the entire field of electronics had only just been invented when they were first made. We were still learning the engineering and physics underlying all this new technology.
