The AM Forum
March 28, 2024, 09:00:40 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Lettine 130 transmitter  (Read 31620 times)
0 Members and 1 Guest are viewing this topic.
n4joy
Member

Offline Offline

Posts: 224



« on: February 13, 2020, 08:51:06 PM »

Thanks to W3JN and WA4BWO, a Lettine 130 has been added to my Lettine family!  This model is a rare bird indeed as there is almost no information on it outside some QST ads.  Tube compliment is 807s for the oscillator, finals, speech amp, phase inverter, and modulator; two 866 rectifiers; and 6L6 clamper.  The QST ad indicates 120 to 130 watts input.

I will post more photos as the cleanup progresses.


* 20200213_193647.jpg (3456.36 KB, 4032x3024 - viewed 1050 times.)

* 20200213_194408.jpg (3393.58 KB, 4032x3024 - viewed 1071 times.)

* 20200213_194720.jpg (3896.18 KB, 4032x3024 - viewed 1063 times.)
Logged
n4joy
Member

Offline Offline

Posts: 224



« Reply #1 on: February 13, 2020, 08:54:37 PM »

More photos...


* 20200213_194747.jpg (3495.51 KB, 4032x3024 - viewed 983 times.)

* 20200213_194805.jpg (3865.92 KB, 4032x3024 - viewed 967 times.)

* 20200213_194822.jpg (2918.46 KB, 4032x3024 - viewed 984 times.)
Logged
n4joy
Member

Offline Offline

Posts: 224



« Reply #2 on: February 13, 2020, 08:56:22 PM »

Last photo for now...


* 20200213_195451.jpg (3228.09 KB, 4032x3024 - viewed 1032 times.)
Logged
w3kbs
Member

Offline Offline

Posts: 23


« Reply #3 on: February 18, 2020, 06:53:34 PM »

Nice Lettine 130.
Have been looking for one for a while or even a 240. I just finished the 6 meter 242 Transmitter and it really does a nice job on 6AM. Put together pretty well for the time period.
Gud luck with her.

w3kbs
Logged
n4joy
Member

Offline Offline

Posts: 224



« Reply #4 on: February 19, 2020, 07:23:33 AM »

Nice Lettine 130.
Have been looking for one for a while or even a 240. I just finished the 6 meter 242 Transmitter and it really does a nice job on 6AM. Put together pretty well for the time period.
Gud luck with her.

w3kbs

Thanks.  The 130 is quite rare and maybe as rare as the 262.  I have amassed a somewhat large collection of Lettines and enjoy restoring and using them.  Information on them is virtually nonexistent outside the old QST ads.  My first was a 242 that I use for a local "net" on 50.4 (Sunday at 7 pm EST).  Lettine also made a VFO and tuner.  I built the VFO unit from scratch (pics posted here) using the schematics.  On a related note, the 240 schematic on Bama is NOT correct, so I will see about posting my scan of an original.

 
Logged
n4joy
Member

Offline Offline

Posts: 224



« Reply #5 on: March 20, 2020, 10:58:05 PM »

I completed the work on my Lettine 130, which included all capacitors and resistors replaced, wiring cleaned up from previous maintenance, new rectifier tubes, and two fresh 807 finals.  I also had to replace the AM/CW switch. 

All works as it should! Output is over 70 watts on 40 meters.


* 20200315_162725.jpg (4112.53 KB, 4032x3024 - viewed 946 times.)

* 20200320_223554.jpg (3856.54 KB, 4032x3024 - viewed 1019 times.)

* 20200320_224036.jpg (3158.75 KB, 4032x3024 - viewed 1024 times.)
Logged
w3jn
Johnny Novice
Administrator
Member

Offline Offline

Posts: 4620



« Reply #6 on: April 02, 2020, 04:14:55 PM »

Glad you got it working, and happy it went to someone who really enjoys it.

Sorry that toob got busted in shipping, I thought I stuffed enough paper in the thing to keep that from happening.
Logged

FCC:  "The record is devoid of a demonstrated nexus between Morse code proficiency and on-the-air conduct."
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.069 seconds with 18 queries.