Rein, It is only 275kb but your mailbox also rejected my earlier message. I will send again. 73 Peter G3SMT

Peter, how large is the file, you can send up to 5MB directly to my email otherwise we can refrain to wetransfer. Did you use that before? Best regards Rien

I was thinking along those lines too, Andy...but without the device knowledge! Mike 'LYP had some good ideas on here last year about devices with which to control heated masthead enclosures (to

It maybe worth considering a customised bit of drive circuitry; one that pulls in at a high voltage than drops to a lower holding value - or a constant current supply. Both manageable with

There could be a case for evaluating that in advance (and maybe with any model?), i.e. powering it up on the bench and checking the temp. rise. It's possible that's how mine failed in it's previous

That's where I read it, Paul - well found! I have a similar (as in y-shaped) relay (with a duff solenoid as it happens) and was looking for an internal picture of the Transco to see if it's

Rein, Tried to send the information to you but it was blocked by :- hostkarma.junkemailfilter.comHow should we proceed?73PeterG3SMT

Hello Peter, Thanks that might be of great help 73es Rien

Hi Al Follow up to the message I sent a few minutes ago. I also found this in the instructions for the JWM sequencer, "A word of caution related to RF relays that are always in a

Hi Al This sent me leafing through my well-thumbed copy of the VHF/UHF DX Book. BTW I wish we had a modern version of this book. No mention of the Transco in the section about coax

Rien, The usual cable has 12 connections. I have the manual for the 69-- series which is a later version of yours but I am unsure if its the same. However, the circuit may give you

The reason AC relays work is because both polepieces are magnetized by the energizing current. The shorted turn acts like a transformer and increases the magnetizing current at the pole piece. This

Andy, Peter - that is fascinating stuff. I just couldn't fathom how it wouldn't hum and chatter! Many thanks! Alan G0XBV

Digging back into my memory I recall that AC relays used a laminated iron core to reduce Eddy current losses and hysteresis losses. To avoid chatter and humming of the armature part of the pole

Hi all Anyone on the list aware of machined blocks to support the Russian EHF SRD multipliers on the EPay or EU region? Second question: I have a weak signal source - a LNB diode soldered across an

Hi Mike My thanks for organising this group buy scheme of the auto-pll board. Mine has now arrived and I am most grateful for all the time and effort you have personally put in. Thank You. Vy

I believe the purpose of the "shading ring" on AC solenoids is to continue the flux - ie effectively keep a current flowing - during the low portion of the sine. Quite how it does it I don't know,

-----Original Message----- From: ALANNOTTAGE@... [ukmicrowaves] To: ukmicrowaves Sent: Thu, 17 Mar 2016 16:47 Subject: Re: [ukmicrowaves] FS: Transco Y Relay >Chris made reference to the coil

Hi Mike Boards arrived safely. Many thanks for all your effort. 73 JimD, GM3UAG

Many thanks to all who responded. 73 JimD, GM3UAG