General > General Technical Chat
Historical 'Look' of old Radio Components!
GlennSprigg:
--- Quote from: TimFox on June 26, 2020, 01:03:21 pm ---That is a surprise. The 6SH7 octal is a close equivalent to the 6AU6 miniature.
--- End quote ---
I will review those differences, out of interest!! Thanks mate! :)
Oops, the 'missus' wants me to come to bed... That's ok.
Now I have to 'eat' too!!... Garlic King Prawns!!! xox ;D
P.S. What Americans call 'Shrimps' are NOT PRAWNS!!
'Shrimps' are tiny things about 1 to 1&1/2" long. PRAWNS are about 4 to 5" long!!!
When the likes of 'Paul Hogan' years ago, was selling 'Australia' with comments like...
"Come to Australia & put a 'shrimp' on the barbie', it was PURELY aimed
at the American market!!! We never did any such thing!!! Least ways, with tiny 'shrimp' that
the likes of a 'Whale' might eat!! ;) haha... ;D
vk6zgo:
--- Quote from: TimFox on June 26, 2020, 01:03:21 pm ---That is a surprise. The 6SH7 octal is a close equivalent to the 6AU6 miniature.
--- End quote ---
About a decade later, surplus 6SH7s were very cheap as surplus components, but probably when that radio was made, most such tubes were still in service, & it was just AWA's spare inventory which determined what they used.
I remember, back in the day, seeing radios where a circular metal "patch" was placed over the old large tube cut outs, with a miniature tube socket mounted in the middle.
These were quite obviously factory modifications, as the workmanship was too good for an aftermarket "bodge".
GlennSprigg:
--- Quote from: vk6zgo on June 27, 2020, 01:08:10 am ---
--- Quote from: TimFox on June 26, 2020, 01:03:21 pm ---That is a surprise. The 6SH7 octal is a close equivalent to the 6AU6 miniature.
--- End quote ---
About a decade later, surplus 6SH7s were very cheap as surplus components, but probably when that radio was made, most such tubes were still in service, & it was just AWA's spare inventory which determined what they used.
I remember, back in the day, seeing radios where a circular metal "patch" was placed over the old large tube cut outs, with a miniature tube socket mounted in the middle.
These were quite obviously factory modifications, as the workmanship was too good for an aftermarket "bodge".
--- End quote ---
Thank you 'vk6zgo' (and others).
It seems that it is a '1949' model. I'm still not sure why it is wired to a base for the 'Magic-Eye', but not included.
Maybe it was just a 'cost' issue, but when I re-build it, it will have one!! :)
rsjsouza:
Glenn, sorry to reopen your old topic. I finally found time to work on my BX462A and I was able to recap it and put it to sing again. Now, on to eternity of service - apart from the tubes and the three electrolytic capacitors.
I documented the journey in a series of videos - if you are interested take a look below and hopefully the automatic subtitles work well enough.
Wallace Gasiewicz:
I knew someone who would take apart the "cans" in old radios and stuff in modern capacitors. His customers paid a good price for that.
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