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Hantarex polo 25-28 multisync horizontal with control (SOLVED)
perjmolsen:
--- Quote from: princess prin prin on November 01, 2019, 09:06:59 am ---
--- Quote from: perjmolsen on November 01, 2019, 08:24:07 am ---I have tested that there is 12.4V at pin 1 at the IC301.
--- End quote ---
It needs 25V at pin 6.
--- End quote ---
Just tested there is 25V at pin 6 also
grantspain:
just want to add that if that is a direct clone of the polo 1 15/25 manual switching chassis then the deflection yoke horizontal specs are way different to a standard polo
princess prin prin:
Yes, that's why there is an impedance adapter mounted on the heat sink for 1.5mH tubes.
perjmolsen:
--- Quote from: grantspain on November 01, 2019, 11:07:56 am ---just want to add that if that is a direct clone of the polo 1 15/25 manual switching chassis then the deflection yoke horizontal specs are way different to a standard polo
--- End quote ---
Yes I have this strange thing on the chassis, I where wondering what that did. :dunno
So its an "impedance adapter" :notworthy: - so I need to use this adapter if the yoke has a lower horisontal value than 1.5mh?
The yoke that I am testing on has the following values
HR: 2.2 ohm 1.56mH
VR: 6.4 ohm 10.86mH
Tube model: A59ECF50X05
In my test/faultfinding I have not used the adapter ....... is that my fault? :banghead:
princess prin prin:
Maybe it's my fault for not thinking of that after seeing this mistake done so many times by Italian collectors. Yes, with that tube you need the adapter.