100 kHz without the modulation:
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1 Mhz:
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FM IF anyone? 10.7 MHz:
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Heathkit RF-1
- Mike H
- Amstrad Tower of Power
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- Location: The Fens
- Contact:
#16 Re: Heathkit RF-1
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
- Mike H
- Amstrad Tower of Power
- Posts: 20189
- Joined: Sat Oct 04, 2008 5:38 pm
- Location: The Fens
- Contact:
#17 Re: Heathkit RF-1
100 MHz!
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"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."
- IslandPink
- Amstrad Tower of Power
- Posts: 10041
- Joined: Tue May 29, 2007 7:01 pm
- Location: Denbigh, N.Wales
#18 Re: Heathkit RF-1
Phwoar !
Good effort . Ready to torture anything you can lay your hands on ?
Good effort . Ready to torture anything you can lay your hands on ?
"Once you find out ... the Circumstances ; then you can go out"
- Mike H
- Amstrad Tower of Power
- Posts: 20189
- Joined: Sat Oct 04, 2008 5:38 pm
- Location: The Fens
- Contact:
#19 Re: Heathkit RF-1
Yups.
I have long-standing back-burner project to make a valve FM tuner from scratch. Now I've got some chance of actually being able to make and look at signals.
Today I cobbled together a better way of getting 120V mains, I was using a small cheap auto-transformer, OK but starts overheating and buzzing after an hour or so. Well some years ago I had Danbury make up a 100VA isolation transformer with centre-tapped 240V secondary, well in fact, 2 x 120V; originally I used this to supply shed lighting but still got it in its plastic case, so I wanged in a US mains socket so now got a 120VAC supply.
I have long-standing back-burner project to make a valve FM tuner from scratch. Now I've got some chance of actually being able to make and look at signals.
Today I cobbled together a better way of getting 120V mains, I was using a small cheap auto-transformer, OK but starts overheating and buzzing after an hour or so. Well some years ago I had Danbury make up a 100VA isolation transformer with centre-tapped 240V secondary, well in fact, 2 x 120V; originally I used this to supply shed lighting but still got it in its plastic case, so I wanged in a US mains socket so now got a 120VAC supply.
"No matter how fast light travels it finds that the darkness has always got there first, and is waiting for it."