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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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10th Nov 2020, 11:06 pm | #1 |
Pentode
Join Date: Apr 2007
Location: Sint-eloois-winkel 8880, Belgium.
Posts: 168
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Geloso G4/225 transmitter
hello,
on the tx i have two output tuning controls, tune and load, tune numbered clockwise from 0 to 10 position load numbered clockwise from 10 to zero position tune is in position 0 fully unmeshed load is in position 10 fully unmeshed now i wonder if this is correct , maybe someone can provide me with this info, if i am lucky , you never now carlos |
10th Nov 2020, 11:51 pm | #2 |
Nonode
Join Date: Mar 2005
Location: Nuneaton, Warwickshire, UK.
Posts: 2,034
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Re: geloso g4/225 transmitter
Hi,
On transmitters I have encountered or built, the tune and load capacitors operate anti-clockwise, with the load capacitor being gradually unmeshed to increase the loading, whilst maintaining a dip in anode current with the tuning capacitor. So, I suppose minimum loading, fully meshed, should be 0. Cheers Aub
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Life's a long song, but the tune ends too soon for us all. |
12th Nov 2020, 2:07 pm | #3 |
Tetrode
Join Date: May 2019
Location: Limoges, France.
Posts: 60
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Re: Geloso G4/225 transmitter
Hi Carlos,
I have a Geloso G222 and both the tune and load are fully meshed in the 10 position. The 225 should be the same I think. I will see if I have the manual somewhere, there are tuning instructions which might give another clue. Peter F4VSA |
12th Nov 2020, 2:28 pm | #4 |
Tetrode
Join Date: May 2019
Location: Limoges, France.
Posts: 60
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Re: Geloso G4/225 transmitter
I see the unit you have is the later SSB transmitter so the orientation of the controls might be different. There is a copy of the manual on the BAMA site
Peter |
12th Nov 2020, 2:29 pm | #5 |
Nonode
Join Date: Jan 2010
Location: Edinburgh, UK.
Posts: 2,008
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Re: Geloso G4/225 transmitter
The manual is here.
http://www.radiomanual.info/schemi/S...dioamateur.php I hope it answers your questions Al
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I won't tell you how I discovered that. |
14th Nov 2020, 2:13 pm | #6 | |
Pentode
Join Date: Apr 2007
Location: Sint-eloois-winkel 8880, Belgium.
Posts: 168
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Re: Geloso G4/225 transmitter
Quote:
if you place the knob on position 10 still fully meshed you cant go back to position zero, the same for the tune position oh boy hi x3 thanks to all carlos on6cn |
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