:-)
SmartDraw was giving me problems so I used MS Paint to generate the entire instructional :-) the ion pump serves a second purpose... Murray put his antenna 30' above the ground and then was 50' from there... That's 80' .. The initial 30' was just to cause a bias antenna side (which is what the ion tube achieves without the 30' ground side... Later Murray also included an ion tube)... Technically the circuit can work with a single diode antenna side... As long as the frequency of the antenna is correct... But under rectification... We'd only receive a halfwave in that case, thus the use of a full bridge in our circuit :-) (plus straight antennas of MHz range would be quite long)
You'll notice when you hit a right or really close frequency due to the fact if you use low voltage (under 1KV+) components.. You'll see an arc and suddenly the circuit will stop working (you blew it) :-)..although bad.. Is good because you almost have it!
Have noticed glass rupturing off the germaniums a few times... And the circuit still functions.. (diode was still in contact minus the casing)
Groundside capacitors have ruptured a few times.. (have resorted to using higher capacity voltage ratings (Low loss).
Trying to make a replica with all homemade components :-) so far so good.. Tuning homemade capacitors is a pain!
Originally posted by LetsReplicate
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SmartDraw was giving me problems so I used MS Paint to generate the entire instructional :-) the ion pump serves a second purpose... Murray put his antenna 30' above the ground and then was 50' from there... That's 80' .. The initial 30' was just to cause a bias antenna side (which is what the ion tube achieves without the 30' ground side... Later Murray also included an ion tube)... Technically the circuit can work with a single diode antenna side... As long as the frequency of the antenna is correct... But under rectification... We'd only receive a halfwave in that case, thus the use of a full bridge in our circuit :-) (plus straight antennas of MHz range would be quite long)
You'll notice when you hit a right or really close frequency due to the fact if you use low voltage (under 1KV+) components.. You'll see an arc and suddenly the circuit will stop working (you blew it) :-)..although bad.. Is good because you almost have it!
Have noticed glass rupturing off the germaniums a few times... And the circuit still functions.. (diode was still in contact minus the casing)
Groundside capacitors have ruptured a few times.. (have resorted to using higher capacity voltage ratings (Low loss).
Trying to make a replica with all homemade components :-) so far so good.. Tuning homemade capacitors is a pain!
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