SEARCH & BAY for repair of my TS680 (= TS140)
SLIDE POTENTIOMETER (sliding distance 10mm) 1 x 10 kΩ
Kenwood Designation VR2 = VR3; Kenwood Part Number # R13-3405-05
Potentiometer was produced by ALPS with designation RS 10F
Please any INFO to 9a3aq(at)hamradio.hr 

Problem solved with help of OZ1FF ( TNX Kjeld ) !
for other: JIT 47 is based on DB6NT design and published in Dubus
GL+73!
Zlatko/9A3AQ

Hi Gentleman!
In old Dubus (1996/1/84) I find small report about Club project for 47GHz transverter JIT47,
as next step after Solectra and LMT1-24.
I try via Google to locate -find documentation for this project, but without suscess !
Did some good felow can help me with sending this description-broshure-web adress-file... via email
Thanks in advance!
73!
Zlatko / 9A3AQ 

finded !  by DK1UV was tube YD1060 

Halllo Frans!
Thanks for fast, nice and usefull advaice! I try to cach some IONICA on Friedrichshafen this year, but other was faster  . Toshiba PA was to expensiv for mee 
In meantime I recived gift from Lorenz/DL6NCI ( FLM3742-12 )  , and now I "must" make PA  .
That is reason that I am looking for papers...
I find on internet some summary listing for Dubus. In Dubus Technick 2 page 200 is some article from DK1UV " 6W 3456MHz PA ". That is probably older from 1984. From this time I have some Dubus magazine, but there is NOT this article ! Is interesant that is article in Technick book and NOT in magazine 
I am not shure wich active elements is used there. That was before 1/4 century 
Mybee somebody have documentation from old RF Module MT 3,4 Z 10 WA  ( ex DL2AM ) 9cm PA.
Old DB6NT 9cm PA ( wich still sold Eisch ) is with 3 x MGF0905.. and not interested for me.
TNX & WBR !!!!
Zlatko

Hallo GHz friends!
I am looking for documentation for homebreawing 9cm PA cca 10W with HEMTs... input is cca 200mW.
Searching in VHF Communications and Dubus was without sucscess 
If have anybody some tested project, pleas send to mee !
73 + TNX !
Zlatko / 9A3AQ
( 9a3aq@hamradio.hr )

Super Frans!
I have succesfull downloaded alls.. ( in Scaterpoint I have find also more interested aticles ) ).
This article from M0EYT must I cerfully read and probably find something ! But best description is in US Patent as I see in short....
If come some Email from ADCOM that bee also nice !!! Mybee is something still on stock??? Did some from GHz fraternity work there

Again TNX for HELP !   !!!!!!!!!!!!!!!!
MAX 73 !
Zlatko / 9A3AQ

Hallooo Frans!
Thanks for quick answer! I have lucked on sugested link.. Yes, there is some pictures wich look as mine late power head... I have non access to Scaterpoint and if is not problem to You, pleas send mee a copy of article.
Live firma ADCOM MICROWAVE anymore? I try to put in gooogle, but nothing find.
Here we have problem with GHz measuring instruments... power meter is krutial-milestone instrument!!!
Same story is with HP 486 for HP432 Bolometer....
TNX in adwance..73!
Zlatko / 9A3AQ

Halloooooo GHz fraternity!
Last three Year I was owner of  Microwave  sensor head „General Microwave  N446A“ . Simple display unit  I make alone. Head was bayed over ADCOM MICROWAVE,  Hazandonk 18, NL 5103GH  DONGEN. Some detailed dokumentation about head I dont have. Only how is necesery to conect head with power supply and instrument.
During reparing my 23cm transverter something start to oscilated unexpected ( or start to work as must )  sensor head BLOW UP.  :'(Neaddle I dont can now ziroed  ( stay below ziro )... I dont can balancing measuring bridge !

My quuestion- my request is:

0.If  anybody have shematics from this family sensor heads, pleas to send me one coppy ?

1.Have anybody some expirience with reparing THIS sensore head. Is there thermistors ( NTC ) or PTC heathing elements? As I see, this elements is pasted on some transparent foil sandwich ( plastic or something like mica ? ). Alls connection, at first between middle contact of N conector and heathing elements , an later to connect point for wire, is also some pasted golded? ribon?? Is posible renew contact with some conductive paint ( like Elcolit )?

2.Is it posible to find-buy ( where? ) complet foil with alls hething elements  for replacing in dont functionable sensor head?

3. Is it posible to find-buy ( where? ) complet  FUNCTIONAL sensor head N446A ?

Much question for my first contact here....sry.... You can probably understand my situation.. Without some instrument like this I am as blind !!!
If is posible pleas answer on english ( or german ) here or on my Email ( 9a3aq@hamradio.hr )

TNX for understanding and for help & and max 73 for alls GHz fans

Zlatko / 9A3AQ

ps. I have put some picture from N446A inside on
      http://img249.imageshack.us/g/agenmicrowaven446aheadi.jpg/