NZGuitars.com : Filling you with GAS since 2003

NZRS-Dave wrote: ↑Sun Aug 08, 2021 9:31 pm I mean. I might be able to make it. Heart attacks willing.

Reg, is there a defibrillator on hand?

Mattallica wrote: ↑Sun Aug 08, 2021 9:28 pm Anyone got any 12" speakers to swap?
I can bring along the Eninence Josh Smith signature if anyone wants to try it

Btw speaker is 8 ohms

Anyone got any 12" speakers to swap?
I can bring along the Eninence Josh Smith signature if anyone wants to try it

jeremyb wrote: ↑Sun Aug 08, 2021 9:17 pm

Mattallica wrote: ↑Sun Aug 08, 2021 9:13 pm Will Dave be joining us?

Have messaged him, I’m so useless, always forget to tell him about these things!!

At least you're doing the messaging. On ya Jezza

Will Dave be joining us?

I will bring:
Randall RM20 with Jensen MOD speaker
Some of the modules I've modified
Grant/lostininverness built single H guitar
Ibanez semi hollow
Random choice ibanez shredder
Assortment of tubes for testing

I'm keen to give the MOD speaker a good hoon for break in

I've put in an order for a SD Stag Mag. To go with my spare SD 59/Custom. For a hypothetical guitar.
Only took a few hours of interwebs combing to decide though. Stone cold sober here...

Note that FET config will be ok for an irf820 but an lnd150 wont work well as a source folllower - best configured as a common source amp with local nfb to the gate for unity gain. Also the 47nf cap AC coupling the fx output might need to be increased a lot (think 2-10uF) depending on whether you i...

Updated EF86 schematic. MOSFETs added to FX loop and to output. Brite switches removed, Rob Robinettes sizzle control used for tone controls. Mid switches added to allow mid bypass and toggle between two cap sizes for bridged T circuit. FX loop is now footswitchable via relays. Footswitch jack optio...

You could also buy a second hand VHT Ultra and rewire it

The transformer is new, i was going to use it to build an x88r then changed plans Schem looks ok. Might want to think about adding an irf820 or lnd150 for the loop/send stage to lower the output impedance, it's super high now but might work ok depending on what's next. Sweet, thank you for the hint...

Optical wrote: ↑Sun Jul 25, 2021 8:46 pm Go for it, should be a fun build.
I also have one of the AS-05T320 - 50VA 320V transformers that i'm not using if you want it, flick me a message.

So the schematic passes an initial QC inspection?
Yeah keen on the transformer! PM incoming.
What did you have it in previously?

jeremyb wrote: ↑Sun Jul 25, 2021 8:37 pm Cool I’ve seen projects before using cheap toroidal transformers, seems like a smart move!

They also look cool AF... but yeah, cost!

I'm wanting to make a few preamps to cover bases the MTS system cannot. Also a 6V6 power amp because why not? I feel like this is the next step in my amp learnings as well. I have only tweaked existing MTS modules preamp stuffs so far. 1U is a big constraint. Very few off the shelf transformers fit....

Boss have one. Seems to work well enough