开云体育

Gang, Is anyone else having a delay in getting a shipment from Jameco? I ordered parts on 3/25/25 and still have not received shipment. Just curious... 73, Alan, N8WQ

Chuck, Thank you so much for the OHR manuals. Having them available is a real find. Hope your wife’s foot heals quickly….. drive safe. You have a precious package. I am getting older and my wife

I downloaded the SP-1, 20M manual just now. Thanks, Chuck! https://archive.org/search?query=ohr+spirit+1 Steve AA7U

Hi Used to be more into VHF/ UHF microwave , but I have drifted down more into the HF region. Kevin ZL1UJG

Search for OHR, Oak Hills Research and QRP should do it. Got the Spirit I manual uploaded.? Rest of them coming as we speak.? For specific rigs you might try the name of the rig.? I'm trying to get

https://www.aliexpress.us/item/2251832645851677.html?ug_edm_item_id=2251832645851677&pdp_npi=4%40dis%21USD%21%2417.00%21%2417.00%21%21%21%21%21%402151e05a17444595335345189d181e%2165026062923%21edm%21%

Hi, I have a number of Kits and Parts dual BPF boards which show extra suckout at the opposing band on the filter response, so it is possible that the toroids are coupling at a low level.? However I

Chuck, What parameters should I use for Oak Hills Research manuals, schematics, etc? Thank you for doing this favor for us. Dave K8WPE

It appears that most of the chips, transistors, electronic parts are now exempt from the tariff.? Mostly I believe codes 8541 and 8542 affect us.

Yes, probably newly manufactured. I did notice that Jameco says "more on the way". I just wasn't sure if anyone is still making quality ceramic variable caps of any size. So many things now are only

Gang, Doug DeMaw, W1FB, started Oak Hills Research way back in time. Dick Witzke, KE8KL-W7DKU-K7NL <sk>, bought the company and produced ???????????? a large number of kits that we all

I have the manual scanned in for the 20m version that I built back in the day.? File size is 1.7MB. -- chuck adams, aa7fo QRP WAS 17m started Apr 2, 2025 WAS-17 QRP --> TX,FL,SC,GA,OK,AR,KS,AL,AZ,MN

New or NOS? Cannot say. I'm inclined to the former because Jameco publishes their stock count and claims new shipments arriving periodically. I have made purchases spanning a year or more and they're

Is there a specific groups.io site for Oak Hills Research transceivers? A friend of mine has an OHR Spirit transceiver, and he is trying to find information about it, manual, and schematic. Thank you.

The Jameco trimmers are available on Amazon also. 98? and free shipping if you have Amazon Prime. BTW, are the Jameco trimmers newly manufactured or NOS? Jim WB4ILP [email protected]> wrote:

If you follow the foot notes There is a series QST, April thru September 1974 with a voltmeter and cut pattern for "Learning to work with Semiconductors".

Oh look - a trimcap that actually looks like a trimcap - and not a bad price either! Like you (and probably most everyone else) I don't like those little brown things. I have a small stash of them

Jim, I know from something I read decades ago that turning two toroids 90deg to each other greatly reduces any interaction.? Makes since from a E&M standpoint. I would think that you have to be

Hi Chuck, In reading your response to my post, it dawned on me that a simple experiment might shed some light on the self shielding or magnetic field containment of toroids. Take a pair of wound

Jim, I do not consider it a dispute.? I was using an L/C meter to test for effects. Since the L/C meter evaluates at a much lower frequency, there is room for more experiments.? I would have to sit