Hello all,
Yet again I was trawling the bay for no particular reason (a dangerous thing to do) and happened upon this AM/FM signal generator. I recognised it immediately as I used one for many years at my previous employment. It was the reference for many a tuner that was produced and returned for service !
Anyway, this one will be winging it's way to me shortly and will be a very useful item. I obtained it for £90 so think it was pretty reasonable. Here are the vendors photo's of the actual generator for now.....
To understand the black art of electronics is to understand witchcraft. Andrew.
Very nice bit of kit, and a great price !
It appears to have a Stereo Encoder built in, is that correct? Is it wideband FM or will it do narrow as well? There are "begin and end " decade switches ,will it perform as a sweep gen?
Sorry lots of questions. Nice piece of test gear.
Frank
Very nice bit of kit Andrew, your certainly building up a nice collection of test gear now 
Marc.
Marc
BVWS member
RSGB call sign 2E0VTN
nuvistor said
It appears to have a Stereo Encoder built in, is that correct? Is it wideband FM or will it do narrow as well? There are "begin and end " decade switches ,will it perform as a sweep gen?Sorry lots of questions. Nice piece of test gear.
Hi Frank, yes it has a stereo encoder, and as far as I remember, it is wide FM. The decade switches are to select a range of pre-programmed signal conditions that can be stored in memory and can be retrieved quickly by rotating the dec-inc dial and pressing recall. If working, this is a useful feature and avoids lots of fiddling about when several differing signals are required.
I will try and obtain a manual for this as I learned how to use it at work by purely trial and error lol
To understand the black art of electronics is to understand witchcraft. Andrew.
marc said
Very nice bit of kit Andrew, your certainly building up a nice collection of test gear nowMarc.
Thanks Marc, it was a pure chance that I happened across this item, I can't even remember exactly where I was browsing on ebay.
To understand the black art of electronics is to understand witchcraft. Andrew.
freya said
Very nice bit of kit, and a great price !
Let's hope it is fully operational..... watch this space 
To understand the black art of electronics is to understand witchcraft. Andrew.
Again, it looks very useful with the added bonus of a stereo encoder. I acquired a Heathkit stereo generator from the Wireless Museum for a couple of quid which is going to need a little work to restore functionality; currently I have an Armstrong tuner-amplifier which will not decode stereo despite working through some bodges and blinders on the decoder introduced by 'enemy action'. I noticed that the cores in the detector transformer had been 'got at' and I wonder if the alignment has been compromised enough to lose the 19kHz pilot tone; the decoder in the Armstrong is directly driven by doubling the 19kHz tone to get 38kHz to drive the switching elements - a pair of AF11whatevers.
Hi, well I am now in possession of the user and service manual for the LSG-216. (Plus 330PDF files of other Leader equipment).
I obtained them via an electronic download from this company.....
www ultimateservicemanuals com
There is a MASSIVE range of manuals that maybe purchased from them and their site is well worth a browse.
(For instance, the Philips vintage audio, radio and TV DVD (or download) contains a whopping 2340 service manuals alone. All for about £16.00).
To understand the black art of electronics is to understand witchcraft. Andrew.
Hi,
Today it arrived and does appear to operate as it should, you never can be quite sure, so am very pleased.
(470khz carrier, then AM followed by FM)
To understand the black art of electronics is to understand witchcraft. Andrew.
@pye625:
I'm currently servicing my old faithful LSG-216 as it has developed several age related problems as:
- memory loss (NiCd memory battery)
- quirky attenuator (4 relays inside VCO module)
I solved all these problems but I'm still trying to locate the main reference crystal oscillator (with a trimmer capacitor) as the generated frequency is off by about 55kHz on the 75-115MHz band. Some help from someone who owns the service manual would be greatly appreciated.
Mod Note:
Putting a : at the end of the mention for pye625, invalidated the syntax of the mention therefore it failed to notify him. The post has been edited and a new syntax correct mention added. The old was left in place with a strike-through, by way of example where you went wrong. A correct mention will end up being a link ( blue) that points to the members homepage.
Hope this advice helps you.
@alleyoop
Get in touch with Leader directly - they're very good on service manuals.
Very nice bit of kit Andrew, your certainly building up a nice collection of test gear now
Marc.
That it is, and sort of kicks my humble function generator into the trashcan! - Just when I thought I was finally going places too! 💥🙀🤦
