And with a main power supply.
Paraset radio power supply.
The only real issue i had with these circuits was the linear regulator would not start with all three tubes.
The method to wiring this radio was done in stages.
The paraset would have been our ideal radio.
Drawing from on5lj.
The power supply is also tested september 15 1953 the power supply is very simple.
Consisting of transformer rectifier tube 6x5gt and a capacitor.
It has 2 of the 12ba6 tubes for the regen radio and 2 of 12aq5 s for the little cw transmitter.
Power supply for mk vii.
A search for more information soon revealed that the paraset was a small vacuum tube transmitter receiver unit built during wwii in the uk at the whaddon hall headquarters of the secret intelligence service communications unit.
Please communicate in english.
With a test of the 12a6 the output was about 2 2w 40ma at battery current of 1 5a.
The power supply delivers 6 vac and 350vdc.
Orange by musmus http musmus main jp.
There is also a nice all brass key connected to the rig out of the photo to the left.
What organization used this radio in 1953.
12v 24ah battery is used.
The paraset is described in some detail in a book secret warfare adapted by david kahn who translated it from the original french book written by pierre lorrain.
Vii also has a 6 vdc power supply included with it which connected to a car battery via large alligator type clips.
One of my ham radio buddies calls this the paraset mini cooper.
I started with the power supply and voltage divider lower left of the photo i wanted to test the linear regulator for the 6 3v filaments as well.
Since it s small qrp power and size and operates on two of the current ham bands it seemed ideal for my glow bug project.
Blueprints from on6wj jos warnier.
Input to vibrator 2 2a.
I tested the power with a breadboard transmitter with nearly the same circuit as the paraset.
The transmitter has the paraset style parallel series tuned tank circuit and seems to load well even with a random length wire antenna.
This 6l6 puts out about 7 8w with 58ma anode current.
4a jpg hd 7a jpg hd 8a jpg hd the power supply is very compact in a great box.
Probably an early version.
Some differences were made during the war.
Background i first heard of a paraset when i saw a message on the qrp l reflector announcing an upcoming june 6th paraset d day activity.
With a 12v6 the output was nearly 4 5w 50ma and 1 8a from battery.
The switch is the 80 40 meter bandswitch.
It has no screenprint.
Paraset in norway.
For other radios separate forums can be set up ask the quartermaster.
Picture of the norweigean oluf reed olsen s set.
