New 18W Build

18watt-specific Tech Talk - Building, Fixing, Parts, Mods...

Moderators: CurtissRobin, colossal, zaphod_phil, Daviedawg, Graydon

User avatar
JMPGuitars
Super Duper Admin
Super Duper Admin
Posts: 3955
Joined: Tue 09/18/12 8:00 pm
Location: South Central, MA
Contact:

Re: New 18W Build

Post by JMPGuitars »

You're a lucky man, enjoy!

I had a 70/80 once. It's a fairly sterile speaker IIRC. Definitely good for a bench speaker. If you're using a standard 18W OT, you'll want a 16 ohm speaker.
0 x
'I installed a skylight in my apartment yesterday... The people who live above me are furious.' - Steven Wright

Modern Ground Schemes
Soldering Technique
B+ Voltage Reduction
Amplifier Tools & Parts Info


Web Design: DolceVittoria.com
Guitars / Amps / Effects: JMPGuitars.com
(anti)Social: Facebook ยท Instagram
Items for Sale

User avatar
Bieworm
Verbose Moderator
Verbose Moderator
Posts: 2287
Joined: Mon 02/10/20 8:24 am
Location: Belgium

Re: New 18W Build

Post by Bieworm »

Rule of thumb when it comes to celestions: stay away from the natural metal colored ones, except the alnicos ๐Ÿ˜Ž๐Ÿ˜Ž๐Ÿ˜Ž๐Ÿ˜Ž
0 x
"THIS should be played at high volume..preferably in a residential area"

paniagua
Unrated
Posts: 11
Joined: Fri 02/24/23 12:11 am

Re: New 18W Build

Post by paniagua »

The poor maligned Seventy 80 :D I think my boy will like it. His Metal Zone pedal might be a little too much though :lol:

My guitar buddy is a cabinet builder and runs a CNC machine. He has some scrap maple veneered baltic birch ply and offered to put together a cab for me. Going close to the 1974 dimensions, 24x20x10.5. Back will have optional closed vs open panels.

I would have preferred a 16ohm/full winding. If I remember correctly, ohming out the taps, they are all on a single winding. I'm not positive. The Mojo TX schematic shows a single winding though.
1 x

Post Reply