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Hi Harvey *Afraid not.* Solar panels are very popular in Australia with at least 1/3rd of homes having roof top solar panels.? In my street of about 30 homes more than half have solar. What this

This is not directly related to the topic, but our local HAM club has at least three full size racks we need to get rid of. This is the Anne Arundel Amateur Radio club in Davidsonville, MD. Drop me a

All of my 19" racks have mounting holes front and back, as usual, but also have mounting holes on the sides as well. I drill pieces of 1-1/2" aluminum angle to fit the mounting holes on the side when

Angles from old bed frames. Brilliant! I need some and never thought of those and they're indeed ubiquitous! Thanks, Barry - N4BUQ

I used to do this with scrounged angle iron from bed frames people would throw out on trash day.? Some are pretty wide and I can attest to the wood strip method to keep things centered.? A sawzall

I got a chance to test the circuit just a bit. I placed a 47k resistor between the base of Q109 and ground. That caused the lamp to illuminate so the transistor is still good. I just need to determine

The cantilever shelves work great. Especially for the smaller stuff, like putting two 1/2 width units together. I have used a lot of Navepoint stuff in the past. This is an option that I like for

Rifa caps are not happy with high voltages.? Could you adjust your solar panel inverter to only 240 volts? Harvey

I've been using these (from Amazon) for years. They work pretty well: AC Infinity Vented Cantilever 2U Universal Rack Shelf, 16" Deep, for 19” equipment racks. Heavy-Duty 2.4mm Cold Rolled Steel,

This is a better solution than mounting ears. It is probable that the ears alone will not properly support the weight of the gear. Glenn

Thanks Henning re *delta marker*. Been a while since I operated this SA. I just confirmed thats the level issue. Re *the cap across the mains* , that's what i suspected initially as I had it happen on

Forgot to mention, most gear should not be mounted only by the front ears or flanges - only the very lightest and shortest (front to back) items are safe this way. Sides and back support is needed for

I have a bunch of fairly heavy aluminum 90 degree angle-iron pieces scrounged up long ago. They are about 2" by 3/16" flats by 30" long, and easy to drill holes anywhere and attach with the usual

I have some of the front mount shelves but the cheap ones won't support the nice HP iron. They deflect too much. That picture was for the Mainframe SRS-4-F. I can get them at my local supplier in

I use equipment shelves that only mount from the front, but the one you show is better mechanically.? Where do you get them?? Do you have a part number? Pter

I have run out of floor and bench space and it's time start filling up the racks I have stored away. :-( Unfortunately most of the equipment does not have mounting ears. Last time I looked at them

It's a later one with the Rev B A2 board 00427-66512, connection pin 5 is also gone, the diode relabelled as CR2 (was CR1) goes directly from pin 8 to pin 11. Original A2 board is 00427-66502. David

Hello I am trying to get a 8720ES working. It has a CPU board fault. The CPU board start some but not fully. I get an error saying: Please stand by- Error INST This error I cannot find info on

Glenn, You have activated the delta marker function, so what is shown if the "normal marker" function is activated? My first idea on the big bang was an exploding RIFA cap on the AC mains input. Did

Probably so Paul. ?I do wonder if the lack of manuals for this particular version of the 427A is because it was a military/govt. version that is just now being phased out. ?Agree on the beat up