Leader LAG-126S LF-Generator - UK Vintage Radio Repair and Restoration Discussion Forum

tri-comp · 14th Aug 2017, 8:24 am

Leader LAG-126S

In a few days I'll be receiving this near-mint generator that I bought.
The reason for buying is mostly that it features an exceptionally low sinus distortion factor of 0,005% from 20~20.000Hz.
One should expect to do some renovations like replacing aged electrolytics and to perform the general calibration procedure.
The Instruction-manual is available from Leader, US but it doesn't contain even the schematics and certainly no calibration instructions.
There seems to be no service-manual available from the Bay and likewise places.
Does anyone here have a copy of the complete service-manual including schematics and calibration that they are prepaired to let go og perhaps to scan ?
I am willing to pay a fair price for either.

Station X · 14th Aug 2017, 11:18 am

Schematics available here for the LAG-126. May be similar to the S model:-

http://www.radiomuseum.org/r/leader2...erator_la.html

One problem I've found with Leader stuff is that the press button (slide) switches may require a lot of contact cleaning.

tri-comp · 14th Aug 2017, 11:39 am

Thank you, Graham,

I've already downloaded the schematics from radiomuseum.org but there's a mix-up in their database.
What they have are the schematics, parts-list and pcb-layout for the LAG-120 which is far from a LAG-126 with or without an 'S'.

So, I'm still searching.....

I can only hope the switches are OK. I'll receive the generator on Saturday and take it apart after the week-end.
DeoxIT is what people seems to prefer for cleaning switches in the US but I've never seen it in Denmark.
It CAN of course be ordered through various channels at a (high) price, but is it worth it ?

Alistair D · 14th Aug 2017, 12:07 pm

I believe Leader can supply service info for their discontinued products. They can be found at this website.

http://www.leaderamerica.com/

Al

tri-comp · 14th Aug 2017, 12:11 pm

Al,

You're absolutely right.
Some time ago I created an acc't with Leader, US for requesting another manual and heard nothing !
So, yesterday evening I send a request for the LAG-126S, hoping for better luck this time.
About 2 min's ago the full service-manual for the LAG-126/126S popped up in my in-box !!
Way to go, Leader.

Goes w/o saying that anyone here in need of this info should send me a PM

14th Aug 2017, 11:18 am	#2
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: Leader LAG-126S LF-Generator Schematics available here for the LAG-126. May be similar to the S model:- http://www.radiomuseum.org/r/leader2...erator_la.html One problem I've found with Leader stuff is that the press button (slide) switches may require a lot of contact cleaning. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

14th Aug 2017, 11:39 am	#3
tri-comp Heptode Join Date: Oct 2008 Location: Aalborg, Denmark Posts: 903	Re: Leader LAG-126S LF-Generator Thank you, Graham, I've already downloaded the schematics from radiomuseum.org but there's a mix-up in their database. What they have are the schematics, parts-list and pcb-layout for the LAG-120 which is far from a LAG-126 with or without an 'S'. So, I'm still searching..... I can only hope the switches are OK. I'll receive the generator on Saturday and take it apart after the week-end. DeoxIT is what people seems to prefer for cleaning switches in the US but I've never seen it in Denmark. It CAN of course be ordered through various channels at a (high) price, but is it worth it ? Last edited by tri-comp; 14th Aug 2017 at 11:45 am.

14th Aug 2017, 12:07 pm	#4
Alistair D Nonode Join Date: Jan 2010 Location: Edinburgh, UK. Posts: 2,008	Re: Leader LAG-126S LF-Generator I believe Leader can supply service info for their discontinued products. They can be found at this website. http://www.leaderamerica.com/ Al __________________ I won't tell you how I discovered that.

14th Aug 2017, 12:11 pm	#5
tri-comp Heptode Join Date: Oct 2008 Location: Aalborg, Denmark Posts: 903	Re: Leader LAG-126S LF-Generator Al, You're absolutely right. Some time ago I created an acc't with Leader, US for requesting another manual and heard nothing ! So, yesterday evening I send a request for the LAG-126S, hoping for better luck this time. About 2 min's ago the full service-manual for the LAG-126/126S popped up in my in-box !! Way to go, Leader. Goes w/o saying that anyone here in need of this info should send me a PM