National Glenwood mod. 90

National Glenwood built in 1964. With 35 watts of cathode bias dripping tone, this is IMO is the ultimate blues amp. Also features a real hammond transformer reverb that has a etherial feel to it and a swampy bias modulated tremelo. these features are on the 2nd of the 2 channels. Tube compliment is as follows 5U4 rectifier, 2 6L6 power tubes ,2 12AX7's, 3 6EU7's and one 6973 reverb driver.2 12in gold Jensens make the tones. I haved owned this amp for 30 years and still love using it as much now as I did when I first bought it. Vibrato would have been nice and I rarely use CH#1. It also loves pedals in front of it, I use a original TS808 with just a little gain to push the amp for that creamy blues tone.

This is a very clean amp for CW.Even at full volume it just starts to break up a little. I play mostly blues and with a little push in front the amp it becomes very creamy. I play a Gibson ES 335 and ES 137 and the humbuckers sound awesome. Single coils are a little to twangy through this amp for me.

AS with older amps this one to has had some work done, new caps and tubes( NOS RCA's ). Caps were replaced because of a humming problem and the tubes well 15yrs of playing with some gigging will wear them out. It has never failed me though. I don't gig as much any more but when I do I still use it without a backup. I take good care of my gear and this one still shows well.

This company is long gone 1969 I think.

I have been playing 35yrs and have played most of all of them and this is my favorite (even more then a original BluesBreaker). If it were stolen I would try to find another. These are getting very hard to find as I have been looking. I own several other vintage amps and pedals and Gibson guitars. If your a blues player and you see one buy it and I know you'll love it.

National Glenwood Model 90. Made in 1966. Two channels, 1 "normal", 1 with reverb and tremelo. I never use channel 1, sounds weak and besides once I plugged into channel 2, I never went back. Reverb that sounds like GOD! Tremelo that must have been dredged out of the darkest, deepest Lousiana swamp. This machine is probably (along with other Valco made twin combos) the most underrated, overlooked, and tossed in the garbage dump cause i didn't think it was worth fixin' amp ever made. Tube line up is 2 6l6's and 12ax7's, huge 3 spring reverb, 2 12" jensen special design speakers. 2 tone tolex with white piping, fender silver face looking grill cloth. has everything I need in a vintage amp.

The sound of this amp is very much like a classic fender twin. Very bright, bell like jangly highs, good bottom end, some what lacking in the mids. Breaks up slightly at high volumes, not extremely loud for a 30 watt twin combo. To play over a loud drummer it should be mic'd.
Its strong suit is clean, clean, clean. I use a TS9 if i want a little distortion. The best sounds from this amp is surf with full reverb, country (early Johnny Cash)and blues (SRV) with my TS9. I play a DiPinto Galaxy 4 Los Straitjackets model (4 single coils), DeArmond Les Paul copy, Teisco El Cheapo set up for slide.

OK, the bad news. Not really that bad, but not real dependable either. I picked this amp up at an estate sale for $200.00. It had not been used much, still had the original tubes. i'm slowly working out all the bugs, i've had it recapped and i should probably have it gone through completely at some point. I don't play out, but would not gig this one without a backup.

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I love this amp. If i ever came across another i would pick it up in a heartbeat. It is, in every way I can see (hear), as good as a fender twin of the same era for a fraction of the price. Check out Supro, Valco, Gretsch, National all made high quality gear and can be had for cheap! (well, cheaper)