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Category Archives: Radio
Building the SSTRAN Part 15 Low Power AM Transmitter Kit
Have a bunch of old tube radios, but nothing good on the air in your area? That’s a common problem, and SSTRAN has the solution! I just built one of these to give as a gift, and thought I’d write up … Continue reading
Philips High Fidelity Laboratories 673 Tuner Repair and Alignment
From the Rain City Audio Repair Blog: This Philips 673 tuner just came through the shop for an overhaul and adjustment. It was working for the most part but the alignment had shifted and there was room for improvement on … Continue reading
Antenna Distribution for AM Radios
I’ve had a few questions come my way about antenna distribution systems for AM radios, specifically to connect something like a large attic antenna to multiple radios at once. There’s a lot out there designed for VHF/UHF or CATV signals, … Continue reading
Telefunken Bajazzo Sport 201 Transistor Radio
Cross-posted from the Rain City Audio Repair Blog: I don’t typically service portable transistor radios, but I make an occasional exception for something especially unique or interesting. The Telefunken Bajazzo Sport 201 is no exception – it’s a high end … Continue reading
Posted in Electronics, Projects, Radio, Vintage
Tagged 201, bajazzo, bajazzo sport, portable radio, Telefunken, transistor radio
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Sherwood S2000-III Tube FM Tuner Repair
Cross-posted from the Rain City Audio Repair Blog: Sherwood made some excellent hi-fi FM tuners back in the day, and this S2000-III is no exception. Unfortunately, there’s not a lot of documentation about this model available, but that didn’t stop … Continue reading
Posted in Audio, Electronics, Hi-Fi, Radio, Radios and Tubes, Vintage
Tagged fm tuner, S2000-III, Sherwood, tube tuner, vintage tuner
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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
Posted in Projects, Radio, Radios and Tubes, Vintage
Tagged 42-365, antique radiov, philco, radio repair, vintage radio
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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.
Posted in Radio, Radios and Tubes, Vintage
Tagged 6 transistor radio, capacitor, capacitor replacement, Coronet, coronet 6 transistor radio, coronet transistor radio, coronet trn-6, photos, portable transistor radio, repair photos, seattle vintage radio repair, shirt-pocket radio, transistor radio, transistor radio repair, trn-6, vintage
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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
Posted in Electronics, Gadgets, Radio
Tagged dongle, hf, KN0CK, RTL-SDR, RTLSDR, SDR#, up-converter, Upconverter
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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
Posted in Electronics, Gadgets, Radio
Tagged 6m, amateur radio, amplifier, converter, direct sampling, ham radio, hf, hf converter, hf up-converter, kf7lze, KN0CK, pre-amplifier, RTLSDR, shortwave, swl, up-converter, Upconverter
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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 →