Alamo amp schematics and/or tube types

Posted by blusplar on Sun, 12/01/02 - 19:35:50.
In Reply to S&L MUSIC GEAR

I recently perchased an Alamo Futura Reverb Model 2567. The tubes that came with the amp are unreadable. Can anyone help in giving me the tube types that go into the preamp and the driver.

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alamo fiesta --dart--AMP

i recently purchased a mint,like new alamo amp.the sticker inside says fiesta but it dosen,t look like any fiesta picture i have seen on the net.this amp is rated at 3 watts/6 watts max.it has a 10 in speaker.controls are, left to right,3 input jacks,volume,tone,speed,intensity.above the speed intensity knobs the word [tremolo] the word[dart] to the right of the speed intensity knobs.tag inside chassis says mdl 2573 FIESTA AMPLIFIER,ser #85471.tubes are left to right looking at back of amp 12au6,35c5,35w4,12av6.the dimensions of this amp are 19 in long,6 1/2 in wide 14 3/4 tall.the 10 in speaker has a square magnet that is 1/2 in thick 2 1/2 x2 1/2. a sticker on the magnet says specially engineered for alamo.everything i have seen about the fiesta model states 10 watt power,8 in speaker.also every fiesta i have seen on the net shows all controls ON THE TOP OF THE CHASSIS.the controls on my amp are ON THE UPPER FRONT OF THE CHASSIS ABOVE THE 10 1/4 x 16 1/2 silver-gold mix snakeskin like speaker grill cloth with a 3 1/4 x 1 alamo nameplate upper left side of grill.i have ordered new tubes as it has a slight hum.the guy i brought it from said he recently put in new capacitors [upgraded] i would love to get a schematic for this as there is probably a difference between this 3 watt/6 watts max amp and the 10 watt fiesta amp.this amp does not have a red power on indicator light as does the 10 watt fiesta.the recessed controls are set in a lt grey painted panel 14 x 2 the chassis is black rough vinyl.has black handle on top secured by 1 1/2 x 1 polished metal rivited strap holders.i would like to get as much info as i can on this amp.as i stated earlier i have looked at hundreds of pictures of alamo amps on every search engine possible and there is NOTHING on this amp,not one picture,is this RARE?I HAVE USED THIS WITH MY NEW STRAT AND I GOTTA SAY THIS LITTLE GUY IS DAMM IMPRESSIVE.THE TREMOLO IS OUTSTANDING,SOUND IS CRYSTAL CLEAR AND THERE IS PLENTY OF POWER.THE NEIGHBOR I BROUGHT IT FROM SAID IT SOUNDED POWERFUL,CLEAR AND CLEAN AND HE LIVES APPROX 500 FT DOWN THE ROAD.ANY INFO ON THIS AMP WOULD BE GREATLY APPRECIATED.THANKS,BLUE

Alamo Paragon Bass

I am wondering if anyone knows where I can find a schematic for the Alamo Paragon Bass amp.

Great sound, just need to fix it!

Alamo Paragon Bass Schematic

I have a Alamo Paragon Special Bass Amplifier model 2569 schematic. Tubes: (2) 12AX7, (1) 7199, (2) 5881, (1) 5U4 Dual channel. Special bass and normal channel.

Alamo Paragon Bass Amp

I have an old Paragon Bass amp (w/slider tone controls) that needs work. I really need a schematic to get it restored. I have photos if it will help ID the model/year.
Thanks in advance!
Lee

I have 2575

I have a 2575 model, maybe that just means it was manufactured in 74/75?

Anyway, the tubes are (2) GT-6L6B and (1) 12AX7R.

The issue is the output transformer has blown and I am not sure what its impedance was.

Any suggestions would be amazing!

Thanks!

Chris

Re: Alamo amp schematics and/or tube types

These Alamo schematics are hard to locate. Realize you may be seeking other models but just wanted to contribute this for a Capri schematic which I located on line this evening.
www.geocities.com/oasysco/alacap.htm. I am also looking for Alamo Model 2 and Model 3 Schematics.

Alamo Model 3 Schematic

I have a Alamo model amp-3 Blueprint schematic dated 12-29-53 Tubes: 6LS7, 6V6, 5Y3

alamo amp model 3

Could you please email a schematic of the Alamo model 3. I'm having a problem wiring n a new speaker, and I also want to upgrade capacities ECT. If needed

Alamo Amp3 Schematics

I have an Alamo Amp3 that was my uncles. Original owner. I want to make harp friendly, but need the schematics. You mentioned you had. Could you email them to me?

Re: Alamo amp schematics and/or tube types

: I recently perchased an Alamo Futura Reverb Model 2567. The tubes that came with the amp are unreadable. Can anyone help in giving me the tube types that go into the preamp and the driver.

No schematic, but found a history of Alamo @
http://www.vguitar.com/brands/details.asp?ID=89

An excerpt covering seven Alamo amp models;
"A good snapshot of the maturing Alamo line (and reflection of the old offerings) can be gleaned from an undated catalog from about 1960. It combines the old “birch A” amp cabinets with newer styling, and features Alamo’s first solidbody Spanish electric guitar.
With an occasional exception, Alamo guitars and amps were all built in San Antonio, Texas. Pickups, as would always be the case, were also made by Alamo.
By this time, the Alamo amplifier line had expanded to include seven basic models, all but one of which existed prior to this catalog. Most were offered in a choice of coverings, either in the old birch cabinet with the A cutout on the grill, or in a new, more modern “grey lite” leatherette, offset with two vertical lines of dark grey beading on either side of the grille, and a dark grey plastic grillcloth. The handles were long, rounded, chrome-plated steel. Prices were identical for either the birch A option or the leatherette.
Still in the Alamo line were the Embassy, Challenger and Jet amplifiers of yore. It’s not known whether they underwent any upgrades. The Embassy featured three tubes (6SL7GT, 6V6GT, and 5Y3GT), a 10" Alamo speaker and 6 watts of output power. The No. 2563 came in leatherette, whereas the No. 2463 came in birch, both for $82.50.
The Challenger amp also had three tubes (6SL7GT, 6V6GT and 5Y3GT) with two inputs, volume control, 8" Alamo speaker and 5 watts of output power. The No. 2562, in leatherette, and No. 2462, in birch, each cost $62.50.
The No. 2561 Jet also had three tubes (including one 6SL7GT), two inputs, volume control, 6" Alamo speaker, 4 watts output power, in leatherette only, for $59.50.
Above these three was the Montclair, which had five tubes (12AX7, 6SLGT, two 6V6GTs and 5Y3GT) with four inputs, tone control, 12" Jensen speaker and 15 watts of output power. The No. 2565, in leatherette, and No. 2465, in birch, cost $124.50.
Top of the line were two Paragon amplifiers. The Paragon had seven tubes (unidentified), four inputs, two volume controls, a pushbutton tone control (bass boost), 15" Jensen Concert Series speaker and 25 watts output. The No. 2567, in leatherette, and No. 2467, in birch, cost $234.50.
The Paragon Special was a bass amp version with a 15" Jensen bass speaker. The No. 2569, in leatherette, and No. 2469, in birch, cost $259.50.
New in about 1960 was the Capri amp, No. 2560. This had three tubes, two inputs, volume control, 6" Alamo speaker and 3 watts output. It was covered in brown leatherette, with no beading, and cost $46.50.
Five Alamo Hawaiian lap steels were available circa 1960. Most had been introduced in the early ’50s. Top of the line was the No. 2499 Futuramic Dual Eight, with two rectangular necks (the outside one slightly elevated), a black and silver fingerboard with block ALAMO letters as position markers, upward facing 4-and-4 tuners, and a script Alamo logo on the front. Each neck had a single Alamo Alnico V pickup mounted under a chrome handrest. Between the necks was a rectangular (chrome) control plate with one volume and one tone control. Next to it was a 2-way toggle select. Cost was $199.50 for the guitar, plus another $50 for hard case and $39 for legs."

Re: Alamo amp schematics and/or tube types

have a alamo electra amplifier and looking for schematics. it's the one with two channels, one with vibrato.

Re: Alamo amp schematics and/or tube types

I found what original tubes that the amp came from the factory with. Some of the other amps out there have had modification installed to use more modern tubes like 6l6s or 6v6s. The amps factory tubes are 7868s. These tubes are no longer made and are hard to come by. There are some out there and they are expensive. (I've found a matched pair for $70 over the internet.) That is too expensive for me, so I modified my amp to use 7591 tubes. The original 7591 are also expensive but Solvtek started manufacturing new versions of the tube, they price at about $27 a matched pair. The good thing about using these tubes is they have the same characteristics as the 7868s. The difference is the 7868 is a 9 pin tube, (I don't mean a mini 9 either). The 7591 is an 8 pin tube. All I had to do is connect matching connections. (ie, plate to plate; cathode to cathode; etc.) If I used 6l6 or 6v6 I would have to do a big mod to change voltages current flows and such, a little hard to do without schematics. I am still looking for schematics.

: I recently perchased an Alamo Futura Reverb Model 2567. The tubes that came with the amp are unreadable. Can anyone help in giving me the tube types that go into the preamp and the driver.

Re: Alamo amp schematics and/or tube types

Blusplar, I checked out my Alamo futura amp and here are the Tubes i have in mine.

Facing the rear of the amp and starting on the right working back to the left they are as follows:

One 12AX7 (Preamp which I have installed replacing the original.) Tube

two RCA Brand 6v6 Tubes

One IEC Brand made in Britain 5AR/GZ34
(This tube also has GT on it and the following #s 1/122-203
I am not sure what role this tube plays in the circuitry)

I hope this helps,

Re: Alamo amp schematics and/or tube types

I too have an alamo futura and have sent you an email. I will try to identify my tubes some of which need replacing as well.

Re: Alamo amp schematics and/or tube types

This is some good investigation going on. I have an Alamo Fury 2566 w/no tubes in it. Fro what I've gathered so far, the 2 power tubes are 7868's and the preamp tube is 12AX7...it's the rectifier tube I have know idea about. Anyone out there w/one of these?

Alamo amp

the Rectifier tube is a 5U4GB/5AS4A if you happen to have a schematic for the 2566 fury email me a copy please fales4@aol.com

Re: Alamo amp schematics and/or tube types

: This is some good investigation going on. I have an Alamo Fury 2566 w/no tubes in it. Fro what I've gathered so far, the 2 power tubes are 7868's and the preamp tube is 12AX7...it's the rectifier tube I have know idea about. Anyone out there w/one of these?

If you look at the amp from the back,and start from the left side,
12AX7A / 7199 / 7868 / 7868/ 5U4GB

Electronics Tech,
Jim Munro
Service Department,
Century Music Systems.
San Antinio Texas
210-496-2050

Model #2563 Alamo Embassy wiring schematic or photo of one wired

My subject kinda says it all. I don't know what year this is but it has 3 inputs , a foot switch input for the intensity and speed controls which I guess do not work without a switch.?? Someone clipped wires coming form this input and controls and i would like to reconnect. I think they may have been trying to bypass foot switch and just have controls active always. I am also wondering before i fix it if that is possible. Or maybe putting my own builtin switch to the cabinet..instead of a pedal..to run these controls..I would just like to see how one is wired? need schematic..also it says 55watts on front and has 2 tubes in it. Seems this thing is rare..since i cant hardly find anything about it online other then a few auctions selling them. Please help. want to try and make it fully functional with speed and intensity controls working..rest of it works good..just gets a hissing and cracking noise ocationaly..i figure thats dust..but i could use some help digging up some wiring diagrams for this thing.

Re: Alamo amp schematics and/or tube types

Sirs: I do have TWO Alamo DART tube amps,but both are of DIFFERENT shape.Could I have theyr schematics,please?
Greeting from Sicily....Sergio NUZZI

Re: Alamo embassy amp

i have a alamo embassy amp and was wondering if anyone knows what tubes it uses?

Mine has 6V6,5Y3,12AX7,and

Mine has 6V6,5Y3,12AX7,and a6AV6. It is marked on the chassis. Alamos had severalvariations in thier curcuits. Ihave two hybrid Jets. One is all solid state pre-amp. One has a 12AX7.Both have5Y3 rec. 6V6 output. SO be careful.

Re: Alamo embassy amp

Solid state preamp with a 6V6 output and 5Y3 rectifier.

: i have a alamo embassy amp and was wondering if anyone knows what tubes it uses?

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