These can be scaled up or down if your b is significantly different.
Paraset power supply.
Consisting of transformer rectifier tube 6x5gt and a capacitor.
This is the power supply i use with the paraset replica.
One of my ham radio buddies calls this the paraset mini cooper.
I decided to use 12v to my paraset.
The voltage parameters measured on the receiver section are shown below.
The homebrew power supply built for the project was only able to provide 295 volts which is a little less than desirable but enough to provide a solid 5 watts of qrp output from the 6v6 power oscillator.
A 5y3 gt or a pair of 1n1007 silicon diodes if desired is used as the full wave rectifier.
A test with a 15w 230v lamp.
The arrows show in which direction the anker swings.
This one was very noisy so i opened it.
Power supply for mk vii this forum is all about building and using world war ii spy radio equipment in particular the whaddon mk vii paraset.
This power supply is also used with other projects as a utility power supplly.
For other radios separate forums can be set up ask the quartermaster.
A series dropping resistor drops the output of the supply to 250v.
The power supply is also tested september 15 1953 the power supply is very simple.
The power supply is very compact in a great box.
The power supply delivers 6 vac and 350vdc.
The transmitter has the paraset style parallel series tuned tank circuit and seems to load well even with a random length wire antenna.
The output is smoothed by a pair of filter capacitors and a filter choke.
It s not easy to find vibrators today.
It has 2 of the 12ba6 tubes for the regen radio and 2 of 12aq5 s for the little cw transmitter.
With new rubberbands it s fit for fight.