03-07-2013, 02:14 PM
The Tx part is working Ok with 2 x 813s in PP, Starts Ok and the Anodes and Coils are a nice red colour. Coil is 1 turn of 22mm water pipe. The Hacker is a bit frizzled up though., even the speaker grill melted and sparks came off the handle.
Joking aside, it works Ok with a single power transistor and everything is cool and civilised. (Sad) I found that about 15V dc into an 150 resistor was just fine on the Rx side which would be ample to charge 6 x AA cells via a current limiter and maybe a bit of circuitry to feed the radio while on charge and connect to the batteries when not charging. There would be 2 of these in series as per the normal 2 x PP9.
Any ideas for ccts to do this would be appreciated.
Mike
Joking aside, it works Ok with a single power transistor and everything is cool and civilised. (Sad) I found that about 15V dc into an 150 resistor was just fine on the Rx side which would be ample to charge 6 x AA cells via a current limiter and maybe a bit of circuitry to feed the radio while on charge and connect to the batteries when not charging. There would be 2 of these in series as per the normal 2 x PP9.
Any ideas for ccts to do this would be appreciated.
Mike
