<electricitym@xxxxxxxxx> wrote in message
news:1128003943.717618.105790@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > Eddie:
> the ONLY transformer in a 5 tube radio would most likely be the audio
> output transformer fed from a 50L6 or 50C5 (or similar) tube which in
> turn would feed a 4 or 5 inch speaker. There is literally nothing
> special about these low power, low fidelity transformers.... if it
> were me, I would obtain a cheap and even non-working tube radio at a
> garage sale or thrift store and rob the transformer that you need....
>
> electricitym
> - - - -
Cheap non working tube radios are getting hard to come by, Antique
Electronic Supply usually carries an assortment of these transformers
though.
Re: who was the transformer rewinder? ... the ONLY transformer in a 5 tube radio would most likely be the audio ... special about these low power,... garage sale or thrift store and rob the transformer that you need.... ...Eddie Brimer wrote: ... (sci.electronics.repair)
Re: Laptops being "dual-voltage"? ... It's true that a cheap TRANSFORMER power supply designed for 60Hz may well overheat on 50Hz. ... However, all laptop power supplies are "switching" power supplies, which are incredibly indifferent to the AC line frequency, since the very first thing that they do is full-wave rectify it and minimally filter it to DC, without a transformer or any ... A cheap powersupply designed for 60Hz will more than likely overheat and fail on 50Hz (if you don't believe me, buy a cheap one from R'shack and try, or just buy an electric toothbrush not specified for 60Hz and try it in Europe. ... (comp.sys.laptops)
Re: Need 12 volt ac to 24 volt ac transformer ... Alternately I could use a cheap 12 volt ac to 24 ... The unloaded output voltage is around 33V, but under load you may get ... 110 side to 12 VAC and get 24 VAC out the other side. ... A real converter is just a transformer.... (sci.electronics.repair)
Re: Need 12 volt ac to 24 volt ac transformer ...boosting transformer on the cheap. ... Alternately I could use a cheap 12 volt ac to ... as the power rating of such an item is highly ... (sci.electronics.repair)
Re: Hartley oscillator stability ... > shifts cause relatively large shifts in tuned tank frequency. ... > interaction with core loss vs frequency vs amplitude vs large tempco.... > an IF transformer the component is perfectly satisfactory- just don't ... not be as cheap or readily available or as small as the little IF cans. ... (sci.electronics.design)
