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[1] Designing & Building a High-Peformance Subminiature-Tube Regenerative Receiver

[2] Video: PIN diode based, single band, transmit/receive switch

[3] German One tube rig

[4] Mica vs Air Variable Capacitor

[5] 'Gibson Girl' Crystal Radio

[6] Reducing fan noise by removing the fingerguard/grill

[7] Designing BPF and Low Pass filters

[8] Operation instructions for PLJ-6LED Frequency meter

[9] Building the Elenco AM Radio Kit using Manhattan style construction


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