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theredhouseinn · 27th Nov 2019, 12:50 pm

I have taken the 3 slugs out of band 4, 5, & 6 coils.
Using an old MW ferrite rod the same dia, sliding it in from the underside end of the coils I can get perfect tracking over the 3 bands end to end with a good waveform.
The ferrite rod material looks different to the slug material. The ferrite rod has no measureable resistance, even with the probes mm's apart.
So, we have a problem with the coils. The formers and / or slugs have deteriorated due to damp. My experiments at the moment seem to suggest that the former's are ok, and that something has happend to the slugs.
If Turretslug could measure his slugs and post the results I can take it from there.
john.

27th Nov 2019, 12:50 pm	#30
theredhouseinn Hexode Join Date: Jan 2013 Location: Kelvedon, Essex, UK. Posts: 273	Re: RCA AR88D Comms Receiver. I have taken the 3 slugs out of band 4, 5, & 6 coils. Using an old MW ferrite rod the same dia, sliding it in from the underside end of the coils I can get perfect tracking over the 3 bands end to end with a good waveform. The ferrite rod material looks different to the slug material. The ferrite rod has no measureable resistance, even with the probes mm's apart. So, we have a problem with the coils. The formers and / or slugs have deteriorated due to damp. My experiments at the moment seem to suggest that the former's are ok, and that something has happend to the slugs. If Turretslug could measure his slugs and post the results I can take it from there. john.