07-07-2013, 02:07 PM
Excellent instructional video Tony, highlighting the pitfalls for the unwary and the safety issues which are typical of sets of that era, hopefully helping to stem the irresistible urge that novices have to plug the set it and 'see if it lights up'. I guess that many will assume that since it's an AC only set, that it has a mains transformer to isolate the chassis, but in fact it poses the same 'live chassis' risks that AC/DC sets do, as you explain fully.
It looked a nice open chassis on which to work to replace the caps. Looking back at PW magazines from the 50s and 60s, I'm always amazed at how many designs for home-brew radios used only a heater transformer and took the HT from the mains. I can't imagine and magazine these days even thinking about such techniques let alone going into print about them.
During my childhood, it was commonplace to connect all manner of unearthed electrical appliances including radios to the lighting socket by fitting a two way adaptor. The light bulb in one socket, then a branched socket, sometimes switched, with a length if that purple coloured twisted two-core flex that was commonplace back then, trailing down to a radio or whatever.
How times change!
Nice finish on the cabinet by the way, with lacquer.
A lot of woodturners use Tetrosyl 'Trade Spray' which comes in 500mL aerosols . You can't buy it retail - it comes in boxes of 48 cans I think.
(Tetrosyl is better known for its other products - T Cut, Triplewax, Car Plan products, Wonder wheels, the Tetrion range of fillers and grouting etc).
It looked a nice open chassis on which to work to replace the caps. Looking back at PW magazines from the 50s and 60s, I'm always amazed at how many designs for home-brew radios used only a heater transformer and took the HT from the mains. I can't imagine and magazine these days even thinking about such techniques let alone going into print about them.
During my childhood, it was commonplace to connect all manner of unearthed electrical appliances including radios to the lighting socket by fitting a two way adaptor. The light bulb in one socket, then a branched socket, sometimes switched, with a length if that purple coloured twisted two-core flex that was commonplace back then, trailing down to a radio or whatever.
How times change!
Nice finish on the cabinet by the way, with lacquer.
A lot of woodturners use Tetrosyl 'Trade Spray' which comes in 500mL aerosols . You can't buy it retail - it comes in boxes of 48 cans I think.
(Tetrosyl is better known for its other products - T Cut, Triplewax, Car Plan products, Wonder wheels, the Tetrion range of fillers and grouting etc).
Regards, David.
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
