开云体育

Unless you are working on a SPS, the ESR of a new cap from a reliable source (that means Digikey, etc, and not ebay), as it applies to use in a old tube rig, will be absolutely satisfactory.? And the

The original caps had and ESR of 1.5 ohms. You might try asking Hayseed what the ESR of their replacement is. From http://www.tubesandmore.com/ C-EC50-50-500CE CAPACITOR, ELECTROLYTIC, 50/50 ?F @ 500

Hi, I have been taught that the lowest ESR is the best value. Never questioned that guidance. I suppose you could call Hayseed and ask them about the ESR value of their caps. DIgiKey sells an

How does one know if the ESR is the "best value" when the actual filter capacitor ESR is not specified by either Hayseed, hallicrafters or any of the original capacitor suppliers?? I can see the need

I played around with this radio a bit today and have a couple of questions.? I injected a 25.1 MHz signal into the VFO input and was able to get about about 6 watts on modulation peaks and I was able

Dan This is one of the audio signal generators I am considering. I am thinking this should do it well. Has considerable range and levels adjust.

Nice looking craftsmanship. Here is a ham owned cap company that has been around for a long time and produces some of the best cap kits for our hobby. HayseedHamfes <https://hayseedhamfest.com/>t As

Thank you so much Dan. Yes I am figuring out that the audio generator is my weak link. It is just a hobbyist tool and not geared for the 50kc area needed to align these IFs. I am looking at something

I went a different route on mine and etched pc-boards. [cid:419369cc-27d7-41a2-9eca-7fbc9fa5fd78] Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of acceptance is not proof of

Looks a nice job. I printed these in abs for my ps2000 . They use the capacitors suggested by Walt in his repair manual. Ian N6UH

This looks all new and aftermarket.? Wondering who did it.? Both my PS2000 have these. C

?Hi, Keith. You’re going to find it easier and more effective using a VTVM for peaking and nulling during most stages of alignment. Moving a DC flat line up or down on the graticle of a scope is

Clark, What is the offset distance between the two shafts, as precise as you can get. Vertical and horizontal I’m willing to try to machine from some plastic stock gears I have that was from some

Look at the entire video at the end of the video that very device exists. I was so amazed you can make anything these days.

The gears are easy to print but you'll need an idler gear between the two or the knob will work backwards . That would entail some kind of holder between the shafts Ian N6UH

Have you checked out SDP/SI and robot parts suppliers for small gears?

I’ll bet someone on here has a grandkid with a 3D Printer that would enjoy cranking out a few gears! https://youtu.be/FqNkHA6-61c?feature=shared 73 Dave

SORRY that last one should have gone to the SR-2000 can't null carrier topic. Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of acceptance is not proof of correctness.

Walt, Its an NPO 5 to 25PF trimmer. I found them on ebay and ordered them. They are identical so I will be able to install it for a factory appearance. C ________________________________ Sent:

I don't remember, and can not find It written down, what is the capacitance range of each section? I have kind of lost track on this topic, but if you have not found an exact replacement, try some of