All of the resistors and capacitors were within tolerances. This model had a 10" Jensen speaker and a tube compliment of 1x6SJ7 (pre amp) 1x6V6 (power amp) 1x5Y3 (rectifier). Vintage { "inCheckoutPromo":[] } Vintage Gibson 1970s G-105 Guitar Combo Amp. In 1962 the Skylark underwent a major redesign. Enter the GA5 point-to-point kit. He is the 2nd owner and a relative bought the amp new. I have one my father bought in 1961. Both the Champ and the GA-5 used a 6SJ7, 6V6 and 5Y3 tube compliment and shared a very similar schematic and part assortment. Your Price $ 399.99 msrp:,lowPrice:399.99. Two 6V6s in parallel; like a Fender 5F2-A Princeton; GA-8 has no NFB loop, uses one less PS resistor I hope Mojotone offers some more p2p amp kits so much fun to build and sound fantastic.Mojotone brings the GA-5 circuit back to life with the Mojotone GA-5 Style Kit. Quality 8" Just great weird. A total gem of an amp that I'd never even heard of before walking into that store. I have a 1954 [Les Paul] JR. rectifier. So kind of a transitional model I suppose. I feel I’m really getting a good understanding of amp building as opposed to just executing a plan. I just loved the sound that the amp made. (Gary) Did I mention that it weighs something like 10 lbs.? The Gibson amplifier model GA-5 has had many incarnations. I have a 1955 GA-5 equipped with the JANO 5"x7" speaker. The four-hour estimate is accurate - it was easy to complete the amp in one afternoon. While it was fun, I really couldn’t understand the interaction between the components, so I found myself just following directions and hoping for a good outcome. Breaks up easily, adaptable, simple to work on. I recently purchased a GA-5 Skylark (White Panel) from Ebay expecting to find a single ended 5 watt. I liked the amp but always felt like it had a little something missing. (Ron, May 2018) 1963 [GA-5] Skylark [(Crestline)], Brown Tolex, Very Good+, [US] $350 (see second pic) lock-joint construction. Discover T. Not tweed or two tone, but more of an ivory wrinkled tolex. For this build, NOS US-made tubes were the choice. The 10" speaker was changed to an Jensen 8" 'special design' speaker. The amp matches the picture on you[r] site exactly. I recently built a speaker cab with an 8 ohm 12 inch Eminence Legend, and I ran the amp (after changing output transformer taps) into that. I'd give this amp a ten for ten, three tubes. I do dig the tremolo very much. **Looking for a Promo Code? There were several very different Gibson amps that wore the 'Skylark' name over the years. The instruction manual could probably use an update with troubleshooting tips, (like: "you need to plug your speaker in using the jack plug--bypassing it with alligator clips won't work"), but it got me across the finish line, ultimately. Rich, colorful, stable vintage sound; easy to take care of. The tubes are 5Y3-6V6-6V6-12AX7 and they are all original Raytheon tubes,with the 12AX7 being marked 'Gibson' (see pics three to six). Top mounted, nickel-plated chassis. It Awesome little amp. I had many a good gig with my friends with it cranked with an Ibanez screaming through it without going deaf. If you're on the fence about this as a first-time build, or for an an experienced tech who wants a quality alternative to the tweed amps of the same era, I'd recommend this little gem in a heartbeat. PA needed. switch as well (I don't remember). They also were produced in several styles over the years (including different styles, see I recently bought a GA-5 Skylark that seems to date to 1964 from the inspection markings shown on the chassis & schematic that has attached to the side of the chassis. I think the amp is just OK. Works decent at low volume- up to 12 o'clock on the volume knob. It is more akin to the later version GA-77 called a Vanguard amp. (Kljjjn Okleshen) Good Stuff! . Good Condition. It does have an 8 ohm tap available if you'd like to try different speakers. The speaker code is 220216, but the pots have a 1961 code on them, so it must be early 1962. Currently the amp is not working so I decided to sell it, maybe that's a mistake. It was pre-packaged, so I don't blame Mojo for missing that one. Gibson Ultrasonic speaker. It has a power switch and a volue control. A 6X4 is the rectifier. Love it through my Tele and a 2x10 cabinet with some reverb. Not much bottom or headroom, the breakup is thin and nasty. Like the non-tremolo GA-5 Skylark, this amp went through a number of cosmetic changes.