Kel80 integrated instruction manual text only kel80 instructions 27/3/00 10:44 am page 1.
Safety warning lethal voltages exist in this amplifier. Even though this is one of our simplest kits, in terms of construction, please do not attempt to build it unless you have some understanding of valve circuitry and can follow safety precautions. We do provide a back-up service, a help-line is m...
Introduction kel 80 monobloc is an inexpensive valve monoblock amplifier capable of providing no less than 80 watts into an 8 ohm load. This is enough power to satisfy those who feel the usual valve amp power of around 20 watts insufficient for their needs. The kel 80 operates in class ab, run- ning...
Build sequence before you start building it is a good idea to check the parts supplied against your parts list. Use the “x” column on the parts list to tick off your components. To help you through the build process you will find to the rear of the manual, diagrams. These will bear correlation to th...
2) start soldering all the resistor first. 3) all the high wattage resistors (above 1 watts) generate heat, thus, it is a good idea to give them at least 15mm clearance from the pcb to avoid tarnishing of the board. These resistors are the following: r1, r2, r7, r8, r13, r14, r19 and r27. 4) solder ...
C) chassis earth solder tag, located on fixing bolt of mains transformer, using 1/1.13 black wire. See page 10 3) connect up the red bfa speaker post to the following. A) for 4 ohm setting, connect the purple leadout from the o/p t. Or for 8 ohm setting, connect the red leadout from the o/p t. N.B. ...
Fire up time 1) now you are ready to fire her up. A useful piece of equipment to use at this stage is a variac (rated at 2 amps or over), to limit the initial voltage input. If you cannot get one do not worry most budding kit builders are armed with only a multimeter, this is sufficient. It is a goo...
Parts list(for 2 off) component description quantity bag no. Location in amp r1 3.9k, 6w 2 1 pcb r2 33k, 3w 2 2 pcb r3 13k, 0.5 2 3 pcb r4 36k, 0.5w 2 4 pcb r5 100r, 1w 2 5 pcb r6 100r, 1w 2 5 pcb r7 180r, 7w 2 6 pcb r8 180r, 7w 2 6 pcb r9 3.3k, 0.5w 2 7 pcb r10 3.3k, 0.5w 2 7 pcb r11 100r, 1w 2 5 p...
Parts list component description quantity bag no. Location in amp c8 220uf 25v 2 26 pcb c9 220uf 25v 2 26 pcb c10 220uf 25v 2 26 pcb c11 0.68uf 630v 2 27 pcb c12 0.68uf 630v 2 27 pcb c13 1uf 250v 2 28 pcb c14 470uf 10v 2 29 pcb c15 470pf 160v 2 30 pcb br1 2 31 pcb(device skb b500 c3200/2200) br2 2 3...
Component description quantity bag no. Location in amp 6au6 2 on v6 valve base (on pcb) 5687 2 on v5 valve base (on pcb) el34 8 on v1, v2, v3, v4 valve bases (on pcb) mains transformer 2 output transformer 2 pcb 2 safety gloves 1 pair maind lead 2 chassis(2 parts) 2 instruction manual 1 alterations ...
