EMRFD Message Archive 10309
Message Date From Subject 10309 2014-09-27 10:12:43 peter_dl8ov T2 Phasing Network capacitors In the T2 schematic all of the capacitors in the phasing network are 0.001 uF apart from C23 wich is shown as 0.0027uF, is this correct?
10320 2014-09-28 16:26:42 iq_rx Re: T2 Phasing Network capacitors That is correct for the original T2 as published in QST more than 20 years ago. In later designs, as in EMRFD, all of the capacitors in the phasing network are 0.010uF.Best Regards,Rick KK7B 10321 2014-09-29 10:47:36 peter_dl8ov Re: T2 Phasing Network capacitors OK, thank you Rick. It looked unusual to see one capacitor in the set with an odd value so I thought I should ask. My next job is matching capacitors for both an R2Pro and a T2.
10322 2014-10-01 18:15:36 radioaustralia123 Question about a potentiometer...with a tap.... Hi,I have a number ( a few hundred) of potentiometers that have a tap position. It is marked C 500k. The tap point is around 36K from one end (a) and 481k from the other end (b). My understanding is that on some old NOS potentiometers the “C” indicated logarithmic. The variable resistance slider at the 50% position is round 57K from end (a) and around 463k from end (b). It is not linear.Question: any idea for what application such a potentiometer would be used for?Thanks,Regards,Roderick Wall, vk3yc.
10323 2014-10-01 18:18:07 Jim Miller Re: Question about a potentiometer...with a tap.... audio volume controljim ab3cv 10324 2014-10-01 18:21:47 radioaustralia123 Re: [emrfd] Question about a potentiometer...with a tap.... Ok on logarithmic being for a volume control. But what would the tap position be used for?Roderick.