Category Archives: Radio

Philco 42-365 Antique Radio Repair

Cross-posted from the Rain City Audio Repair Blog: This Philco 42-365 came to the shop in need of major repairs. It was missing its dial string, lamps, and the power transformer had melted down due to a failure in the … Continue reading

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High Stability TCXO Upgrade for RTLSDR Dongles

Over at RTL-SDR.com, I found out about a great new product that’s just come out for more precise SDR applications: a customized R820T-based stick with a high stability temperature compensated crystal oscillator (TCXO) in place of the stock crystal, giving … Continue reading

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Homemade North Korean Defector’s Radio [Photos]

Radio might be taken for granted here in the U.S., but in other parts of the world it’s still a vital link in receiving underground information in repressive regimes. This story out of North Korea from NK News shows just … Continue reading

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1962 Coronet 6 Transistor Shirt-Pocket Radio TRN-6

This rare early shirt-pocket transistor radio, the Coronet TRN-6, needed a few new capacitors to sound its best. It delivers surprising performance from such a small package! Plenty of tear-down photos in this article.

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Check it out at Rain City Audio Continue reading

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KN0CK Amplified RTLSDR for HF Rev. 5 is Back!

After some technical difficulties, the KN0CK Amplified RTLSDR for HF Rev. 5 is back! Now for sale directly through blog.KF7LZE, and including free shipping in the United States, and a free PAL to BNC adapter with purchase! Everything you need to … Continue reading

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KN0CK and KF7LZE RTLSDR for HF Back In Stock at Easy-Kits.com!

Edit: Easy-Kits.com is offline, but still for sale! Click through.  We’ve completed the next production run of Rev 5 direct-sampling RTLSDR with HF converters by KN0CK ! Rev 5 Direct Sampling HF RTLSDR with Amplifier

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For Sale: The KN0CK and KF7LZE RTLSDR for HF Rev. 5!

I’m happy to announce that Rev 5 of the KN0CK and KF7LZE RTLSDR for HF is now available for sale in its 5th iteration – now featuring Direct Sampling, while still keeping the familiar wide-band pre-amplifier! On account of the … Continue reading

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Coming Soon: KN0CK and KF7LZE RTLSDR Receiver Rev. 5!

Edited 6/10/2014: Now for sale directly at KF7LZE.net! I’m proud to announce that in just a few days, Easy-Kits.com in cooperation with KN0CK will be releasing Rev. 5 of the popular RTLSDR Integrated Upconverter with a brand new design and … Continue reading

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1936 Zenith 5-S-29 Repair with Dial Face Replacement

I recently had the privilege of working on this beautiful 1936 Zenith 5-S-29 tabletop radio. It’s a beautiful 5-tube table radio with a 6-inch speaker and the iconic black Zenith dial and lightning bolt Z pointer. This one is special, … Continue reading

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Bose Repair: 901 Series I Equalizer #31131

My workbench has been absolutely swamped lately, so I’ve been rather slow on writing up the projects I finish. I’ve finally had a little bit of time to put some of this down on paper and the first thing cleared … Continue reading

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