Henry 2k classic

A new pair of tubes will cost you about $550. So make sure it works and tubes put out. Otherwise you could have to invest in it about what it was bought for.

If the mileage is low, there should still be some miles remaining in it. The power supply should not have any electrolytics in it if it's the floor-standing version. One less thing to worry about. Just be skeptical of a reading on the HV meter that looks higher than the manual says to expect. This will signal a HV filter choke going bad. That part makes the stack of electrolytic caps used in other models look cheap in comparison. Reach into the blower inlet and give the wheel a spin. If it doesn't spin freely, don't run the amplifier until it's freed up.

The 2k Classic was a top-of-the-line beast.

45 years ago.

It's not just the years it's the miles, too.

73

That's a great deal!!

I just bought a Henry 2k3 and paid $1000 for it. Now I'm going through the process of troubleshooting it. It's ALMOST working!

Hmm. The "-3" version was made in the mid-60s and used the 3-400Z tube of that era. The 3-500Z didn't hit the market until 1970. I'll guess that some adaptation has already been made to prevent the plate cap from shorting to the shield cover. The 3-500 is taller.

We have found that amplifiers over 50 years old are reaching the "awkward age". Somewhere between the 40-year and 50-year mark the list of things that deteriorate gets longer.

The "teardrop"-shaped meters are a particular aggravation. The mounting holes won't match anything made in the last 50 years, and the original meters are pure unobtanium. If your meters work okay, count your blessings.

Beware the mercury relays that control the main power switching. Never turn this model on its side with the cord plugged in. The mercury will slosh and close the primary circuit as if you had pushed the power button.

You'll never guess how I learned that.

73

The Henry 2k3 I have came with 3-500z's. According to the manual, that's what it came with from factory.

These old amps are great looking. Nothing today has the same appeal to me. I guess we'll see how I feel after some time off operating it.

Well, then I'm out of sync and thinking of the "-2" model. Shoulda looked it up before putting my foot in my mouth.

Just looked at the manual, and sure enough that's what it says. I think I know what fooled me. The front cover of my 2k-3 book says "Los Angeles 64, Calif" after the street address.

Two-digit postal-zone codes were replaced by the five-digit "ZIP" code in 1963.

Fun fact: The name "ZIP" is an acronym for the phrase "Zone Improvement Plan".

Here's hoping it gives you long and faithful service.

73

No worries! At the moment, I'm still in process of testing it. The AMP meter wasn't working, but I'm hoping it is because of the 1.5A fuse that was blown. I've ordered replacements, and as soon as they arrive from digikey, then we'll see what happens.

There was a 2k3 panel for sale on ebay that I was watching for a few days. It went for $250! I was waiting to see if my meter was working before buying. I should have just bought it to have backup parts. I suppose I'll be buying another 2k3 for parts at some point.

It seems like whenever I buy anything, I have to buy 2 or 3 just in case!

Right now is an interesting time in radio. Parts shortages, and it seems like the price floor for radios has increased in the last 18 months for sure.

Henry 2K Classic (n3xkb.com)

Henry amplifier tune-up charts, amplifier tune up chart (radiodan.com)