Build Order Doc.

[talbany]

Going through some old files I ran across this. Assembly procedure for an Overdrive Special. By Brandon Montgomery (Bludotone):D
One of the things I've noticed is everyone seems to be all over the road with respect to assembling their amps.IMO I think this is a rather important procedure to assembling a clean neat, easy method for running certain wires throughout the amp. hopefully this will help save you some time as well. Perhaps we can edit this if someone notices an improved method in certain areas of your builds..

Enjoy!

Tony

1. Mechanical assembly with screws, threaded stand-off's, tube sockets, Terminal Strips, and ground lugs first. If you install the transformers first how do you get the screws in that are under the transformers? why do you want to build with all that dead weight? leave them out until it's time to wire them so that your chassis can be easily manipulated

Build your boards, and connect all the leads to the boards with an addl 1-
2" of lead just in case, since the screws are already there, hold your boards in place to make sure you get long enough leads BEFORE you clip Very Happy

2. Install relay supply board, route wires along the back of the chassis- these are the longest runs of wire in the amp. Install and wire footswitch jack, manual/pedal switches, also wire up the voltage regulator and pilot lamp on the "Lamp end".

3 Install Bias supply/ rectifier board, and bias pot. Route wires along the relay switch leads, bind together with zip ties, leaving an area unbound to attach the output of the bias pot to the preamp board later.

4. Install OT and Choke, Wire power tube sockets: Screen grid leads first, plate leads, cathode resistors(or wire if you don't use 1ohm's to ground), pilot lamp power assembly, screen resistors, grid stopper resistors & Bus, attach OT plate leads.

5. Install FET board with Power lead(leave extra length for routing).

6. Route shielded wires: If you are using coax solder the shields to the back of their respective pots, if you are using foil shield Install the pots and ground bus. Wire the input jack.

7. Wire the switches, pots, and PAB relay, Install leads from Relay board grounds to Manual/pedal switches

8. Install the preamp board with flying leads attached, Wire from v1 toward power tubes, then wire the other side of the board starting with the grid leads/ bias supply lead(routing it along the back of the chassis) Wire presence, then master volume. Wire shielded leads for OD Drive and volume, wire tone control leads.

9. Wire channel relay

10 Install power supply board and wire (all leads should be in place by this time and just need to be attached) and wire stand-by switch.

11. Wire Up OT Secondary (This step can take place anytime after v2 and v3 are wired with plate, grid, and cathode leads) Impedance selector, and speaker Jacks.

12 Mount PT and wire B+, Bias Supply, Grounds, and filament LEads.

13. Install twisted filament leads

14 Install power cord and wire Power switch, and fuse holder ( I don't EVER wire the death cap, if you choose to it is your prerogative)

15 Install fuse

16. Check all Grounds, and leads for continuity, take your time and go over each lead to make sure it is wired correctly.

17. Plug into a current limiter or variac and fire it up

18 If everything is good, fire it up at full AC and check voltages

19. If everything is good, Install tubes, bias, and give her a listen!


Working on a Smoke test procedure next..
_________________

[martin manning]

https://ampgarage.com/forum/viewtopic.p ... 307#p44307

Funk. Some other folks chimed in there too.

[talbany]

https://ampgarage.com/forum/viewtopic.p ... 307#p44307

Funk. Some other folks chimed in there too.

Thanks Martin
My search turned up nothing? Brandon gets all the credit!

Tony

[drew]

The illustrated build guide to the original Brownnote D'Lite -- which, IIRC, Normster wrote -- was good, too, if anyone can find it at this point.