|
|
| Topics |
Author |
Replies |
Views |
Last post |
| Announcements |
 |
Addition to Forum Rules
|
Alan Voorhees |
0 |
632 |
Jul Fri 30, 2021 3:38 am
Alan Voorhees
|
| Topics |
 |
 High Voltage Regulator Design Issue
[  Go to page: 1, 2, 3 ]
|
Jthorusen |
52 |
832 |
Aug Mon 02, 2021 9:51 pm
OldWireBender
|
|
Solid state 1920's speaker amplifier revisited
|
Tube Radio |
16 |
2506 |
Aug Mon 02, 2021 3:25 pm
Tube Radio
|
|
Low Noise DC receiver idea
|
Dare4444 |
0 |
58 |
Aug Sun 01, 2021 10:27 pm
Dare4444
|
|
simple formulas for calculating tank circuit values?????????
|
shockedagain75 |
11 |
812 |
Jul Sat 31, 2021 8:16 am
ACORNVALVE
|
|
SDR Transceiver Idea with 2n7000
|
Dare4444 |
2 |
205 |
Jul Fri 30, 2021 7:36 pm
Dare4444
|
|
SSB transceiver idea
[ Go to page: 1, 2 ]
|
Dare4444 |
20 |
529 |
Jul Fri 30, 2021 8:14 am
Dare4444
|
|
Polyakov mixer working for DSB generation?
|
sv3ora |
6 |
230 |
Jul Fri 30, 2021 5:49 am
KX5JSC
|
|
Antennae question
|
keith1898 |
14 |
345 |
Jul Fri 30, 2021 5:38 am
Mike Toon
|
|
How To Properly Install a On Off Slide Switche ?
|
Frank512 |
9 |
753 |
Jul Thu 29, 2021 4:03 pm
err ducks
|
|
AM with IN4148 double balanced mixer
|
Dare4444 |
2 |
183 |
Jul Mon 26, 2021 9:19 pm
Dare4444
|
|
38 as regenerative detector
|
allthumbs |
13 |
1096 |
Jul Mon 26, 2021 7:56 pm
err ducks
|
|
Another regen 1D8 tube.
|
ballroad |
3 |
268 |
Jul Sat 24, 2021 12:16 am
mrx
|
|
Schematic for regen utilizing an 815 tube?
|
KA8GEF |
3 |
177 |
Jul Fri 23, 2021 11:41 pm
N0BST
|
|
Tube IF transformers
|
dr pepper |
15 |
1494 |
Jul Fri 23, 2021 3:21 am
ACORNVALVE
|
|
Variable Frequency Synthesized Source for AM Transmitters
|
NW2K |
1 |
216 |
Jul Thu 22, 2021 9:35 pm
Colin Ames
|
|
diy FM superhet without audio ?
|
aurel |
0 |
135 |
Jul Thu 22, 2021 2:26 pm
aurel
|
|
Power ON indicator for battery tube sets.
|
Robert Lozier |
14 |
694 |
Jul Wed 21, 2021 6:38 pm
Tube Radio
|
|
2m receiver ideas
|
Dare4444 |
6 |
602 |
Jul Wed 21, 2021 2:56 pm
Dare4444
|
|
Single-end output amp schematic using 211 output tubes?
|
soloapollo |
4 |
316 |
Jul Sun 18, 2021 1:04 pm
NW2K
|
|
Relay circuit question
[ Go to page: 1, 2 ]
|
Tube Radio |
22 |
1261 |
Jul Sun 18, 2021 9:17 am
Tube Radio
|
|
Tickler Question
|
jimbob |
3 |
247 |
Jul Sat 17, 2021 9:49 pm
Jim Mueller
|
|
AMT-MW207 525-1605kHz kit built - OK sort of...
|
Robert Lozier |
0 |
178 |
Jul Thu 15, 2021 8:47 pm
Robert Lozier
|
|
Homebuild Reinartz tuner amp.
[ Go to page: 1, 2 ]
|
beast775 |
32 |
1753 |
Jul Wed 14, 2021 11:44 pm
mrx
|
|
Antenna for QRP pixie kit
[ Go to page: 1, 2 ]
|
whfh99 |
21 |
815 |
Jul Wed 14, 2021 7:18 pm
whfh99
|
|
My recent one tube regen
|
ballroad |
10 |
811 |
Jul Wed 14, 2021 12:34 am
ballroad
|
|
input impedance for BNC to opamp
|
mhamiton |
11 |
516 |
Jul Tue 13, 2021 12:57 am
Jim Mueller
|
|
Subharmonic SDR idea with schematic.
|
Dare4444 |
5 |
288 |
Jul Mon 12, 2021 11:33 pm
Dare4444
|
|
Untested SSB SDR Idea. Any feedback or suggestions please
|
Dare4444 |
5 |
190 |
Jul Sun 11, 2021 11:48 pm
Dare4444
|
|
ZX81
|
jsweinrich |
9 |
840 |
Jul Wed 07, 2021 2:45 am
Ed in SoDak
|
|
LM386N MK-XI BCB Transmitter
[ Go to page: 1 ... 51, 52, 53 ]
|
35Z5 |
1046 |
308154 |
Jul Tue 06, 2021 8:43 am
Retrotube
|
|
Loop antenna question
[ Go to page: 1, 2 ]
|
whfh99 |
20 |
975 |
Jul Sun 04, 2021 7:41 pm
OldWireBender
|
|
Construction 3 tubes Audion 1923, all concert, patent Audion
[ Go to page: 1, 2 ]
|
yan_sk |
38 |
3624 |
Jul Sun 04, 2021 3:02 am
mrx
|
|
All tube AM Transmitter
|
jim campbell |
2 |
500 |
Jul Thu 01, 2021 4:38 pm
rxradio
|
|
Crystal Radio Set
|
Blustar1 |
17 |
7152 |
Jun Tue 29, 2021 6:50 am
Nivagues
|
|
Heathkit White Solid Hookup Wire - What Gauge Was It ?
|
Frank512 |
2 |
265 |
Jun Tue 29, 2021 1:05 am
Frank512
|
 |
Moved: Anyone collect Crystal radios?
[ Go to page: 1, 2, 3 ]
|
whfh99 |
51 |
2176 |
Jul Fri 09, 2021 7:28 am
BobWeaver
|
|
Home brew 2.5 mH Choke (and Other Considerations) For Regen
|
krystallo |
13 |
842 |
Jun Thu 24, 2021 1:04 am
shinkuukan
|
|
Regen radio coil question
|
SkyKing |
6 |
657 |
Jun Wed 23, 2021 4:17 am
Macrohenry
|
|
Flyback Driver Questions
|
Macrohenry |
10 |
896 |
Jun Mon 21, 2021 10:17 pm
ACORNVALVE
|
|
LM317 regulator design
|
mhamiton |
13 |
1053 |
Jun Sat 19, 2021 3:25 am
Jthorusen
|
|
Update - My Vacuum Tube Frequency Synthesizer
[ Go to page: 1, 2 ]
|
BobWeaver |
20 |
2154 |
Jun Fri 18, 2021 10:02 pm
mblack
|
|
This $1 piezo disc ROCKS! as a horn driver.
[ Go to page: 1, 2 ]
|
Robert Lozier |
34 |
2359 |
Jun Fri 18, 2021 4:09 am
hwhall
|
|
converting an old radio into Bluetooth speaker with FM radio
|
rocky22 |
17 |
1253 |
Jun Sat 12, 2021 2:20 pm
jimsp
|
|
UPDATE #2: RC-30 Manual television Cabinet Almost done!
[ Go to page: 1, 2, 3 ]
|
Mr. Highlander |
46 |
8190 |
Jun Thu 10, 2021 12:25 am
tym
|
|
Moved: Is this called a machinist adjustable square ?
|
pauls.ironhorse |
5 |
558 |
Jun Tue 08, 2021 2:57 pm
pauls.ironhorse
|
|
Magnetic loop antenna to regen interface?
|
Sparks62 |
2 |
405 |
Jun Thu 03, 2021 11:35 pm
Sparks62
|
|
New winner for impossible translation in transistor kit?
[ Go to page: 1, 2 ]
|
Robert Lozier |
23 |
1569 |
Jun Thu 03, 2021 2:47 pm
Robert Lozier
|
|
Assistance requested with a superhet build.
|
928GTS |
16 |
2915 |
May Sun 30, 2021 3:47 pm
928GTS
|
|
PCB hole sizes to be ordered
|
Macrohenry |
6 |
687 |
May Sat 29, 2021 4:48 am
Macrohenry
|
|
Moved: An Afternoon with John Rollins, W1FPZ
|
AE2EA |
0 |
309 |
May Fri 28, 2021 2:57 pm
AE2EA
|
|
|
