Coming out of storage

Pioneer24

Pioneer24

Pioneer Collector
I've got 2 beauties coming out of storage - Project/one Mark 600 (kind of a Pioneer) & SX-1250. The Project/one has not been used in 20 years & the SX-1250 was last used 1 year ago. Both were taken care of prior to storage.

Both were stored in the house (no smoke, moisture, etc.). I've done some searches here on AK and come up with the following start-up procedure:

1. Switch settings - speakers - off, source - Aux w/nothing connected, volume = zero
2. Power on - leave for several hours, then power down - after that, use as normal

Anything I missed? Any suggestions?

Thanks in advance.
 
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There are often suggestions to use what is called the AK Variac which uses light bulbs to limit current flow to the unit being powered up. Do a search on AK to explore the routine. It apparently is worth the read. Some units like the SX-1250 have protection relays that may not kick on until they get at least 80% of running voltage. Check it out first especially for the unit that has not been run for that long. Have fun.
 
You need a 200W bulb to get the SX-1250 going, that works. For smaller units a 100W bulb is ok.
 
More help please

Thanks for the input. Please excuse my further questions - as I do not have a technical orientation.

I did some research on AK, audio Asylum & recalled a couple of prior conversations with other vintage Pioneer colectors. And now I'm a bit CONFUSED (this is what I get for thinkin too much). Here's a couple of things I could use some help with:

1. What are the risks of not using a poor man's variac or regular variac to fire these unit up for the first time?
2. Some posters say not to use a variac with solid stage gear while others use it every time they fire up their Spec-2 - what are peoples opinions here?
3. Are the settings on the receivers I mention in the original post correct?

Thanks (again) in advance!!!
 
I just got lucky and bought a new, unused SX-650. I spoke to a local tech that has been working on hifi for as long as he has been alive, for his advice on initial startup. He suggested I power the receiver and instantly turn it off (on-off in one motion). After waiting a couple minutes, power it on for a moment (about 1 second) and again turn it off. After a couple minutes power it on a third time and leave it on (use it) for several hours.
This may be a bunch of BS, but it sounds logical to me. His 2 cents and I thought I would pass it along.
Charlie
 
I think your original procedure would work just fine. You may or may not lose a bulb or two, but if you do they would have failed in short order anyway.

A variac is much more important tool for use with tube gear where they are dealing with much higher voltages.

Now if one is blowing fuses, then a variac can be useful even on SS gear as a troubleshooting tool.

Lefty
 
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