I.F. afregelen Philips "Matador" (Techniek Radio/TV)
door jorge 
, 17.04.2018, 21:41 (2417 dagen geleden)
I need to repair a
I.F. of 128 kHz radio philips "Matador" can someone tell me the number of turns I should use?
Jorge.
I.F. afregelen Philips "Matador"
door kris , Gent België, 18.04.2018, 00:35 (2416 dagen geleden) @ jorge
Hi Jorge,
please can you explain your question in more detail? You need to rewind the IF transformer, or just adjust it?
best regards
Kris
I.F. afregelen Philips "Matador"
door Ouwe Schipper , Sassenheim, 18.04.2018, 06:47 (2416 dagen geleden) @ kris
That is what I have doubts about
Are you sure it really is the coil that needs rewinding?
In case the frequency is not correct any more,
Most of the times it is the capacitor
The metal is rather thin and corrosion results in
loss of capacity
Nico
--
een kinderhand
is ook weer gauw leeg
I.F. afregelen Philips "Matador"
door jorge , 19.04.2018, 14:25 (2415 dagen geleden) @ Ouwe Schipper
HI Ouwe.
I need to know the number of turns and wire gauge.
Jorge.![[image]](images/uploaded/201804191225415ad88ac566021.jpg)
I.F. afregelen Philips "Matador"
door jorge , 19.04.2018, 14:23 (2415 dagen geleden) @ kris
HI KRIS.
I need to know the number of turns and wire gauge.
Jorge.![[image]](images/uploaded/201804191223115ad88a2f038fe.jpg)
I.F. afregelen Philips "Matador"
door Maurice 
, Dordrecht, 18.04.2018, 00:35 (2416 dagen geleden) @ jorge
I Think you mean the Philips V6A type of radio
Look at the NVHR.NL site
http://www.nvhr.nl/schema.asp
Type in V6a
And you find the schematics
Its Coil S20/S21 code 28 587.77.0 with a Dc resistance of app. 100 Ohms
Or Coil S22/S23 code 28 587.81.0
-The Difference mostly only the internal parallel capacitors.
For repair - a challange- just un wind and measure the length of the wire.
Then with a new wire wind untill the end and you have your new coil.
![[image]](images/uploaded/201804172234265ad6767269048.jpg)
I.F. afregelen Philips "Matador"
door jorge , 19.04.2018, 14:29 (2415 dagen geleden) @ Maurice
HI Maurice;
I need to know the number of turns and wire gauge.
![[image]](images/uploaded/201804191229145ad88b9ad8860.jpg)
I.F. afregelen Philips "Matador"
door henkk , Alkmaar, 24.04.2018, 18:50 (2410 dagen geleden) @ jorge
The missing coils are identical was the ones still present,also with the same distances
from the (other)end.
The paralel capacitor is also the same.
To adjust shift the outer coils for maximum signal and fix with wax.
Its a gentle and simple design.
Henk
I.F. afregelen Philips "Matador"
door Ouwe Schipper , Sassenheim, 20.04.2018, 08:47 (2414 dagen geleden) @ jorge
Looking at the picture....
It appears to me that total destruction has taken place
Winding coils like those is a job for a specialist with special instruments
In my opinion the only solution for that is a replacement IF transformer
Wish you good luck
Nico
--
een kinderhand
is ook weer gauw leeg