Rob Lenski
Stations Heard: 71
My contest set for this year is Rockey’s Pentode-Triode set from his book on regenerative receivers. It uses a metal cased pentode (6SK7) for the detector, and a 6J5 for the amp. The set is fairly straight forward to build, and uses relatively few parts. One nice feature of this set is that no interstage transformer or choke – both of which can be somewhat hard to find – are required. Another distinctive feature is that this set uses cathode tap coils rather than a coil with a separate main and tickler coil.
While the set can be run off of a 6V battery for the filament and 10 – 12 nine volt batteries for B+, it works even better when you use a power supply to deliver 200 – 300 volts of clean, filtered DC.
This set was easy to build and has given me very little trouble. You could also use the 6AC7 tube for the detector. Pinout is the same as the 6SK7. The 6AC7 is a very inexpensive tube, but is a little noisier.
Log
Time is GMT.
Location: Michigan Contest log for SW Class # Time Freq. Station 7-26-08 001 9:27 p.m. 3330 CHU 002 9:29 p.m. 3185 WWRB 003 9:53 p.m. 5875 WHRI 004 9:55 p.m. 5890 VOA 005 10:00 p.m. 5920 WBOH 006 10:08 p.m. 5950 Radio Taiwan Int'l 007 10:11 p.m. 6000 Radio Habana Cuba 008 10:19 p.m. 6180 R Nacional da Amazonia 08-02-2008 009 8:00 a.m. 9570 China Radio Int'l 010 8:15 a.m. 9650 KBS World Radio (S. Korea) 011 8:17 a.m. 9580 Radio Australia 012 3:15 p.m. 9565 Radio Habana Cuba 013 3:20 p.m. 13690 WYFR 014 3:25 p.m. 9495 TWR 015 3:45 p.m. 11990 Radio Kuwait 016 3:51 p.m. 9840 WHRI 017 3:56 p.m. 9370 WTJC 018 3:57 p.m. 9980 WWCR 019 4:01 p.m. 9515 Germany Pan American BC 020 4:18 p.m. 11885 WHRA 021 10:42 p.m. 9700 Radio Bulgaria 022 10:45 P.m. 9480 Voice of Russia 023 10:49 p.m. 9665 Voice of Russia 024 10:51 p.m. 9680 Radio Taiwan Int'l 025 10:54 p.m. 9265 WINB 026 10:58 p.m. 9505 WYFR 027 11:02 p.m. 9690 China Radio Int'l 030 11:09 p.m. 9625 Canada CBC NQ SW Service 031 11:13 p.m. 9860 Voice of Russia 032 11:20 p.m. 7440 Radio Ukraine Int'l 033 11:23 p.m. 6175 Voice of Vietnam 034 11:26 p.m. 6180 Radio Habana Cuba 035 11:33 p.m. 6080 Radio Prague 036 11:43 p.m. 7385 WHRI 037 11:49 p.m. 6040 Vatican Radio 08-03-2008 038 12:14 a.m. 10000 WWV 039 12:16 a.m. 5000 WWV 040 7:06 a.m. 5955 Radio Netherlands 041 1:30 p.m. 11785 WEWN 042 1:35 p.m. 9980 KSDA Guam Adventist World Radio 043 7:06 p.m. 6090 World University Network Anguilla 044 7:08 p.m. 6145 China Radio Int'l 045 7:13 p.m. 7315 WHRI 046 7:21 p.m. 11700 Radio Bulgaria 047 7:23 p.m. 9550 Radio Habanna 048 7:31 p.m. 11740 WYFR 049 7:37 p.m. 9420 Voice of Greece 050 7:38 p.m. 9925 Crotian Radio 051 7:40 p.m. 9875 Radio Vilnuis Lithuania 052 7:43 p.m. 12020 Voice of Vietnam 053 7:57 p.m. 4160 WWCR 054 8:03 p.m. 6145 NHK Radio Japan 055 8:06 p.m. 6020 China Radio Int'l 056 8:47 p.m. 9280 Radio Cairo 057 8:53 p.m. 9845 Radio Netherlands 058 8:57 p.m. 9440 Radio Slovakia 059 9:01 p.m. 9620 Voice of Turkey 060 9:30 p.m. 6010 Radio Sweden 08-04-2008 061 8:01 p.m. 7333 CHU 062 7:57 p.m. 5850 WHRA 063 8:07 p.m. 6055 Spain Radio Exterior Espana 064 8:14 p.m. 9640 Germany Pan American Broadcast 065 8:19 p.m. 11790 Radio Romania Int'l 066 8:22 p.m. 7465 WWCR 067 8:37 p.m. 9390 Radio Tirana Albania 08-05-2008 068 5:25 a.m. 5890 WWCR Identified later 07-26-2008 069 9:49 p.m. 5745 WHRI 070 10:05 p.m. 5935 WWCR 08-02-2008 071 10:19 p.m. 7385 WRMI