simonbaker4's channel
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VID00034
simonbaker4
36 views
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db-sb-sync-pulse.wmv
simonbaker4
166 views
Comparison of dfbowers DISC sync pulse while manually rotating DISC pot vs. SB DISC sync pulse, same procedure. Note that hesitations in the movement may be due to rotatin...
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TGSL audio ground jumper.wmv
simonbaker4
386 views
Effect of Audio Circuit on TGSL filter stages. Jumper to connect audio ground to battery ground seems to help reduce effect.
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anomaly-CIMG2999.AVI
simonbaker4
128 views
Gain test - dfbowers TGSL - with anomaly of "double" output trace.
Syncing on input waveform.
Input sine wave injected at U103b pin 3.
Output at U104 pin 6 (DISC...
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filter-2hz.wmv
simonbaker4
132 views
input - output compare TGSL main filter section - compare dfbowers and SB PCBs.
Injected signal at U103 pin3 (non-inverting input) = .287 mV pp.
dfbowers output appro...
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LM308noise-GB-DISC-CIMG2996.AVI
simonbaker4
230 views
TGSL noise signal at output of LM308 chips - GB and DISC. Scope settings: sweep 20 ms/div; vertical 50 mV / div. SB PCB with dfbowers coil.
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fieldtest100814.wmv
simonbaker4
172 views
Field test of tgsl pcb compared to dfbowers pcb using same coil. Recent mods -- increase sensitivity range with "dfbowers mod". Also testing 2 nF trim capacitor on RX coi...
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TGSLmountainTest4
simonbaker4
168 views
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MountainTestVideo1DV
simonbaker4
158 views
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Coil Winder With Mechanical Counter - Proof Of Concept
simonbaker4
4,621 views
Proof of concept -- if done by someone handy might function OK.
Gears made with pencils, cardboard, dowel, Elmers glue.
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