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seeking help for leak stereofetic tuner



 
 
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  #1 (permalink)  
Old March 21st 07, 06:21 PM posted to uk.rec.audio
henri
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Posts: 1
Default seeking help for leak stereofetic tuner

Hi everyone,

I would like to find a schematic for the affordmentioned tuner . It is
the less sought after fm tuner made by Leak (ss vs Tubes). Can anyone
help me locate a schematic for it .Any advice regarding the
"usabilaty" of this tuner, and or, comment will be greatly
appreciated .

thank you in advance

M

  #2 (permalink)  
Old March 21st 07, 09:29 PM posted to uk.rec.audio
tony sayer
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Posts: 2,042
Default seeking help for leak stereofetic tuner

In article .com,
henri writes
Hi everyone,

I would like to find a schematic for the affordmentioned tuner . It is
the less sought after fm tuner made by Leak (ss vs Tubes). Can anyone
help me locate a schematic for it .Any advice regarding the
"usabilaty" of this tuner, and or, comment will be greatly
appreciated .

thank you in advance

M


Dunno abaht a diagram tho I did see a site with a lot of leak stuff
thereon.

Its a fine thing for a history lesson of the time, the name cane from
Stereo FET and IC !.. FWIW..
--
Tony Sayer
  #3 (permalink)  
Old March 22nd 07, 08:31 AM posted to uk.rec.audio
Jim Lesurf
external usenet poster
 
Posts: 3,051
Default seeking help for leak stereofetic tuner

In article .com,
henri
wrote:
Hi everyone,


I would like to find a schematic for the affordmentioned tuner . It is
the less sought after fm tuner made by Leak (ss vs Tubes). Can anyone
help me locate a schematic for it .Any advice regarding the "usabilaty"
of this tuner, and or, comment will be greatly appreciated .


Afraid I don't have a circuit diagram to hand. There may be one in Spicer's
book on Leak. I'll check that later today if I get a chance.

My (unreliable) recollection, though, is that the StereoFETIC was referred
to at the time by some as the 'StereoPathetic' because its RF performance
was quite poor in various ways. Not tried one myself, though.

Slainte,

Jim

--
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html
  #4 (permalink)  
Old March 22nd 07, 12:23 PM posted to uk.rec.audio
Don Pearce
external usenet poster
 
Posts: 1,822
Default seeking help for leak stereofetic tuner

On Thu, 22 Mar 2007 09:31:09 +0000 (GMT), Jim Lesurf
wrote:

In article .com,
henri
wrote:
Hi everyone,


I would like to find a schematic for the affordmentioned tuner . It is
the less sought after fm tuner made by Leak (ss vs Tubes). Can anyone
help me locate a schematic for it .Any advice regarding the "usabilaty"
of this tuner, and or, comment will be greatly appreciated .


Afraid I don't have a circuit diagram to hand. There may be one in Spicer's
book on Leak. I'll check that later today if I get a chance.

My (unreliable) recollection, though, is that the StereoFETIC was referred
to at the time by some as the 'StereoPathetic' because its RF performance
was quite poor in various ways. Not tried one myself, though.

Slainte,

Jim


I seem to remember that its IF bandwidth was rather relaxed and suited
to the widely spaced channels of the time. These days, when channels
are crowded up against each other, it might not perform so well.

d

--
Pearce Consulting
http://www.pearce.uk.com
  #5 (permalink)  
Old March 22nd 07, 06:50 PM posted to uk.rec.audio
Mike Coatham
external usenet poster
 
Posts: 92
Default seeking help for leak stereofetic tuner

Jim Lesurf wrote:
In article .com,
henri
wrote:
Hi everyone,


I would like to find a schematic for the affordmentioned tuner . It is
the less sought after fm tuner made by Leak (ss vs Tubes). Can anyone
help me locate a schematic for it .Any advice regarding the "usabilaty"
of this tuner, and or, comment will be greatly appreciated .


Afraid I don't have a circuit diagram to hand. There may be one in Spicer's
book on Leak. I'll check that later today if I get a chance.

My (unreliable) recollection, though, is that the StereoFETIC was referred
to at the time by some as the 'StereoPathetic' because its RF performance
was quite poor in various ways. Not tried one myself, though.

Slainte,

Jim

Yes, the circuit is in Spicers Book. I have a copy so can scan the page if required.
  #6 (permalink)  
Old March 25th 07, 05:03 PM posted to uk.rec.audio
frankwm
external usenet poster
 
Posts: 19
Default seeking help for leak stereofetic tuner

Have 3 of 'em...one boxed/new from eBay a few years back...overpaid
for that - they go for peanuts now
Originally bought one in 1971 - used for 15 years until a Meridian 104/
JVC TX-900L.
The Stereofetic is capable of superb results (ie, typically in advance
of the quality now transmitted - especially in terms of transient
response).

It has a few weaknesses.
The stereo decoder needs tweaking - top LH underneath decoder board
pot - as 'mono' is differentiated from 'stereo' by little more than a
2/3mm turn.
The power supply can fail - and capacitor Hum can be around from this
source.
You might get a bit of noise from the aged transistors.
The capacitors (1.5/10uF) definitely need either replacing or
bypassing.
The output leads are pretty awful quality - thin OFC is far better.
The tuner has an inherently somewhat 'bright' response...although
essentially more 'neutral' than the preceding Stereo Troughline 3.
I needed to mod a Meridian 104 quite a lot to achieve the 'speed' that
the Stereofetic is capable of.
It should be quite sensitive (there is a bit of pot-tweaking that can
be done underneath the gang's) - but the wide-ish IF is possibly not
suitable for crowded City locales.

 




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