SolderSmoke Podcast #225 is available
http://soldersmoke.com/soldersmoke225.mp3
Mars, West Coast smoke.
Pete's Activities:
-- DC receivers.
-- CW offset
-- GQRP talk
-- The uSDX project
Bill's Bench
-- Sliding into the Vintage Test Gear Cult: HP8640B .
-- Fixing up and figuring out Radio Shack DX-390 receivers.
-- 220 to 110 on a few remaining devices.
-- Got myself a Dremel-like rotary device.
Tech News:
-- ARRL/TAPR Convention: SDR project from Walla Walla University students. Intuitive explanation for why desired and image freqs in a mixer come out with very useful phase differences.
-- Chuck Adams' Amazing Lab Notebook. Includes a simple circuit to measure resistance and Q in crystals. FB.
MAILBAG:
-- Dino KL0S SITSing in his shack, homebrewing 9 MHz filters FB Dino. Airborne!
-- Dave NT1U sent us the famous 1968 QST Article by W7ZOI re DC RX.
-- Ron K0EIA listening to SWBC staions with uBITX.
-- Ted AJ8T Korguntubes making a 12AX7 equivalent.
-- Joel N6ALT sent me a nice DX-390 manual. Thanks Joel
-- Bob KD8CGH alerted us to the uSDX project -- story on the blog.
-- Craig AA0ZZ Sent a great message with insights on computer code -- I will put up on the blog.
--Tracy KN4FHX reports on optimistic prognosis for SolarCycle 25. Some chickens may have to be sacrificed.
-- Stephen M0OMO Thanks SolderSmoke for rekindling interest in this hobby.
-- Paul VK3HN has a cool new rig -- The Prowler -- check it out
-- Steve N8NM working on his Sunbeam car -- Pete already knew about the carburetor synch problem. N6QW knows everything.
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