Re: Francophones

Liste des GroupesRevenir à se repair 
Sujet : Re: Francophones
De : cd (at) *nospam* notformail.com (Cursitor Doom)
Groupes : sci.electronics.repair sci.electronics.design
Date : 21. Dec 2024, 22:11:59
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <jhbemjhp7clnj0upa5ov0otlsmfpg8mq4s@4ax.com>
References : 1 2 3 4 5 6 7 8
User-Agent : ForteAgent/8.00.32.1272
On Sat, 21 Dec 2024 18:41:59 +0000, liz@poppyrecords.invalid.invalid
(Liz Tuddenham) wrote:

Cursitor Doom <cd@notformail.com> wrote:
>
[...]
Sorry for the delay; took a bit of tracking down but I have it now:
 
https://disk.yandex.com/i/3SiZ6rN_k-fP4w
>
Here's my version.  I couldn't display the tables as tables, so I have
repeated the headers as individual paragraphs.  One or two bits didn't
make sense, so I have indicated them with question marks.  See the
originalpublication for the diode probe circuit.
>
Beware, the text is scattered with roman numerals.
>
>
>
INSTRUCTIONS FOR ADJUSTMENT
>
Agjustment on 9v D.C.,
>
>
Adjustment of the final audio Push-Pull stage.
>
Insert a milliameter in place of the link at the Collector of AC 188 K
(use point -x-).  Adjust the quiescent current to 6.5mA by means of R410
(500 0hms).  After adjusting the current, resolder the link.
>
>
Adjustment of the IF amplifier:
>
By means of R515, adjust the Collector current of T IV to obtain a
voltage drop of 1.35V across the Emitter resistorR518
>
-----------------------------
>
Adjustments FM intermediate frequency  10.7 Mhz  Switched to "FM".
>
Adjustment:   F VII
Couple wobbulator output to: MP5
Measuring equipment:  Diode probe [as circuit] to F VII point 6
Adjust for:  (a) Off tune. ( b) At maximum and symmetrical
>
Adjustment: F VI & F V
Couple wobbulator output to: MP3
Measuring equipment:    Diode probe [as circuit] to F VII point 6
Adjust for: (c) & (d) maximum and symmetrical
>
Adjustment:   F IV & F III
Couple wobbulator output to: MP2
Measuring equipment:   Diode probe [as circuit] to F VII point 6
Adjust for:  (e) & (f) maximum and symmetrical
>
Adjustment: FII & FI
Couple wobbulator output to: ?close? to mixer
Measuring equipment:  Diode probe [as circuit] to F VII point 6
Adjust for:   (g) & (h) maximum and symmetrical
>
Adjustment: Discriminator
Couple wobbulator output to: MP5
Measuring equipment: Across 50 kilohm cable on MP11 (at audio input)
Adjust for: symetricality.  During this sdjustment the signal must be
very weak so that FI doesn't limit.
>
-----------------------------
>
Adjustments AM intermediate frequency 460 Khz   Switched to Medium Wave
["PO".]
>
Adjustment: F XIII & F XII
Couple wobbulator output to: MP3  F III
Measuring equipment:    Test point ?? MP4
Adjust for: (I) & (II) maximum and symmetrical
>
Adjustment: FXI
Couple wobbulator output to: MP8
Measuring equipment:    Test point ?? MP4
Adjust for:  (III) maximum and symmetrical
>
Adjustment: F X & F IX
Couple wobbulator output to: CV AM, MP7
Measuring equipment:    Test point ?? MP4
Adjust for: (IV) & (V) maximum and symmetrical
>
--------------------------
>
Adjustment of the AM oscillator and input stage.
>
When aligning Long Wave and Medium Wave, couple to the ferrite rod
aeraial across the frame [????].  Short Wave alignmnet is done with the
telescopic aerial unsoldered.  The signal is injected by a 15pf
capacitor into the telescopic aerial terminal.
>
Medium Wave
Tuning dial set to 560 Khz
Adjust oscillator for (1) maximum
Adjust input circuit for (3) max
Mixer sensitivity 13uV
Oscillator output 60 - 90 mV
>
Medium Wave
Tuning dial set to 1450 Khz
Adjust oscillator for (2) maximum
Adjust input circuit for (4) max
Mixer sensitivity 14uV
Oscillator output 60 - 90 mV
>
Long Wave
Tuning dial set to 160 Khz
Adjust oscillator for ---
Adjust input circuit for (6) max
Mixer sensitivity 13uV
Oscillator output 65 - 95 mV
>
Long Wave
Tuning dial set to 240 Khz
Adjust oscillator for (5) maximum
Adjust input circuit for (7) max
Mixer sensitivity 10 uV
Oscillator output 65 - 95 mV
>
Short Wave
Tuning dial set to 6.6 Mhz
Adjust oscillator for (8) maximum
Adjust input circuit for (10) max
Mixer sensitivity 5 uV
Oscillator output 35 - 90 mV
>
Short Wave
Tuning dial set to 15 Mhz
Adjust oscillator for (9) maximum
Adjust input circuit for (11) max
Mixer sensitivity 4.5 uV
Oscillator output 35 - 90 mV
>
---------------------
>
Oscillator and IF alignment
>
Tuning dial set to 88 Mhz
Adjust oscillator for (A) maximum
Adjust IF coil for (C) max
Hiss level around 5 kT0   ... [No idea what that means]
Oscillator voltage on Emitter of T II  75 - 85 mV
>
Tuning dial set to 106 Mhz
Adjust oscillator for (B) maximum
Adjust IF coil for (D) max
Hiss level around 5 kT0   ... [No idea what that means]
Oscillator voltage on Emitter of T II  75 - 85 mV
>
Notes:
Inject the signal from an oscillator with an internal impedance of 60
ohms directly into the mixer.  After alignment, coupled by 60 ohms, the
fundamental of the oscillator into the input of the mixer must be less
than 2 mV.

I have to say, fair play to you for that effort! It may or may not be
100% accurate, but will contribute with others' to eliminate any
remaining uncertainties with any luck.
Thanks again.

Date Sujet#  Auteur
20 Dec 24 * Francophones59Cursitor Doom
20 Dec 24 `* Re: Francophones58Liz Tuddenham
20 Dec 24  `* Re: Francophones57Cursitor Doom
20 Dec 24   +* Re: Francophones2Liz Tuddenham
21 Dec 24   i`- Re: Francophones1Allodoxaphobia
21 Dec 24   `* Re: Francophones54Jeroen Belleman
21 Dec 24    `* Re: Francophones53Cursitor Doom
21 Dec 24     `* Re: Francophones52Liz Tuddenham
21 Dec 24      +* Re: Francophones50Cursitor Doom
21 Dec 24      i+* Re: Francophones2Liz Tuddenham
21 Dec 24      ii`- Re: Francophones1Cursitor Doom
21 Dec 24      i`* Re: Francophones47Jeroen Belleman
21 Dec 24      i +* Re: Francophones34Cursitor Doom
21 Dec 24      i i+* Re: Francophones32Jeroen Belleman
21 Dec 24      i ii`* Re: Francophones31Cursitor Doom
21 Dec 24      i ii `* Re: Francophones30Allodoxaphobia
22 Dec 24      i ii  `* Re: Francophones29Cursitor Doom
22 Dec 24      i ii   `* Re: Francophones28Liz Tuddenham
22 Dec 24      i ii    +- Re: Francophones1Cursitor Doom
23 Dec 24      i ii    `* Re: Francophones26piglet
23 Dec 24      i ii     `* Re: Francophones25Ian Jackson
23 Dec 24      i ii      `* Re: Francophones24Arie de Muijnck
23 Dec 24      i ii       +* Re: Francophones5Ralph Mowery
23 Dec 24      i ii       i+* Re: Francophones3Jeroen Belleman
24 Dec 24      i ii       ii`* Re: Francophones2Ian Jackson
24 Dec 24      i ii       ii `- Re: Francophones1Phil Hobbs
24 Dec 24      i ii       i`- Re: Francophones1Ian Jackson
24 Dec 24      i ii       `* Re: Francophones18Ian Jackson
24 Dec 24      i ii        +* Re: Francophones14Cursitor Doom
24 Dec 24      i ii        i`* Re: Francophones13Ian Jackson
25 Dec 24      i ii        i `* Re: Francophones12Cursitor Doom
25 Dec 24      i ii        i  +- Re: Francophones1Jeroen Belleman
25 Dec 24      i ii        i  +* Re: Francophones2Ralph Mowery
25 Dec 24      i ii        i  i`- Re: Francophones1john larkin
25 Dec 24      i ii        i  +- Re: Francophones1Ian Jackson
26 Dec 24      i ii        i  `* Re: Francophones7john larkin
27 Dec 24      i ii        i   +* Re: Francophones5Jeroen Belleman
27 Dec 24      i ii        i   i`* Re: Francophones4john larkin
27 Dec 24      i ii        i   i +* Re: Francophones2Dan Green
27 Dec 24      i ii        i   i i`- Re: Francophones1john larkin
27 Dec 24      i ii        i   i `- Re: Francophones1Jeroen Belleman
29 Dec 24      i ii        i   `- Re: Francophones1john larkin
25 Dec 24      i ii        `* Re: Francophones3john larkin
25 Dec 24      i ii         `* Re: Francophones2Ian Jackson
25 Dec 24      i ii          `- Re: Francophones1john larkin
21 Dec 24      i i`- Re: Francophones1Liz Tuddenham
22 Dec 24      i `* Re: Francophones12Liz Tuddenham
22 Dec 24      i  `* Re: Francophones11Cursitor Doom
22 Dec 24      i   +* Re: Francophones2Liz Tuddenham
22 Dec 24      i   i`- Re: Francophones1Cursitor Doom
22 Dec 24      i   +* Re: Francophones2Jeroen Belleman
22 Dec 24      i   i`- Re: Francophones1Cursitor Doom
22 Dec 24      i   `* Re: Francophones6ehsjr
22 Dec 24      i    `* Re: Francophones5Cursitor Doom
23 Dec 24      i     `* Re: Francophones4Jeff Layman
23 Dec 24      i      `* Re: Francophones3Cursitor Doom
24 Dec 24      i       `* Re: Francophones2Jeff Layman
25 Dec 24      i        `- Re: Francophones1Cursitor Doom
22 Dec 24      `- Re: Francophones1Cursitor Doom

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