LW1DSE's latest activity
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LW1DSE replied to the thread Restoring and mod of a Collins 51S-I.Originally it was a RCA phone jack. Such a foolery. 14.5mS with same voltages and output traffo. No necesarily implies more power, but... -
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LW1DSE replied to the thread Restoring and mod of a Collins 51S-I.Yes, sockets were added, changed and rewired partial or completelly. Higher gm tubes mean usually more gain thus better s/n ratio. I...
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LW1DSE replied to the thread Restoring and mod of a Collins 51S-I.As mentioned, the transistor at the audio preamp was extirpated. The double triode 5670 is removed and now a 6GH8 is placed there. The...
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LW1DSE replied to the thread Restoring and mod of a Collins 51S-I.The mA (Smeter) is OK but removed from the panel during the work to prevent any damage during it. The AGC subsystem is completely...
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LW1DSE posted the thread Restoring and mod of a Collins 51S-I in Radios, Transceivers, & Communication Equipment.Hi all folks. I owned this vintage rig near the start of 2025. It was out of service, tubes and knobs missing. Lytics look good, mainly...
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).Electrically speaking, it is the mirror or negative of a dipole. Setting it horizontally, radiates vertically polarized waves, this is...
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).OK. The mods, owners and administrators on these and other forum I'd participated, usually get hungry when the thread goes too heavily...
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).Ok guy. Thanks for your comments. Sorry for went off topic (ham radio and related stuff) but the conversation went this way. I see...
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).This thrash.They have a half bridge topology with 2 MOSFET paralleled in each leg. The current sense circuit is about 10 units 6.8R in...
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).Yes, 18 years repairing industrial stuff. In fact, such company started with the videogame business, those ARCADE big machines, but as...
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).Wow, 36KW blowing into smoke in front of your face!!! My explosions usually were very much moderated, some MOSFET or IGBT. But several...
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).This is my home, wiewed from Google Go Satellite. You can see clearly the solar panels set, and my humble neighborhood.
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LW1DSE replied to the thread LW1DSE's home aerials (or antennas).Lead less solder is very prone to fracture with time and temperature. In my last job untill 2020 when pandemic come on, I worked in a...
