I just order a new trimmer. It’s 100R? Any specific type I should get? Just want to make sure I get the right one.
screw on top , pretty much only specific
if you have any spare trimpot , up to 500R , you can use it here
only price is that you'll have less to twiddle , but not critical
if you have any spare trimpot , up to 500R , you can use it here
only price is that you'll have less to twiddle , but not critical
sometimes it's hard to figure
Got my stuff from ZM. Thanks ZM. So I thought I may as well get something to put it in. I was thinking the 4U/400 would be the perfect box but... it doesn't come with the UMS. Only the 4U/300 and 5U/400. And its expensive, $250 I think and you have to send the file. Kind of hard to figure since they do it all the time anyway. Or, I can do it myself. Either way kind of a pain. Am I the only one that thinks the 4U/400 is a great size for these projects? I like to support the store. They do such a great job. Are they missing the boat here?
Don
Got my stuff from ZM. Thanks ZM. So I thought I may as well get something to put it in. I was thinking the 4U/400 would be the perfect box but... it doesn't come with the UMS. Only the 4U/300 and 5U/400. And its expensive, $250 I think and you have to send the file. Kind of hard to figure since they do it all the time anyway. Or, I can do it myself. Either way kind of a pain. Am I the only one that thinks the 4U/400 is a great size for these projects? I like to support the store. They do such a great job. Are they missing the boat here?
Don
you certainly missed numerous times when I yelled , cried, begged ......... 4U/400 is Swiss Knife solution for 99% of FW amps we are given
I'm making almost all of my concoctions in 4U/400
I'm making almost all of my concoctions in 4U/400
dunno 
just make your own taps , and take it as normal
tip - almost always you can set things that needed hole(s) goes between fins ; that way you drill complete through hole (not blind) and tapping through hole is much less critical
and , even if bolt is little protruding between fins , M3 is so small and mostly invisible
just make your own taps , and take it as normal
tip - almost always you can set things that needed hole(s) goes between fins ; that way you drill complete through hole (not blind) and tapping through hole is much less critical
and , even if bolt is little protruding between fins , M3 is so small and mostly invisible
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CNC Router
Don,
It is kit based system from OpenBuilds
https://openbuildspartstore.com/
It is the large C-Beam kit that they no longer sell but they have newer design models available. I have modified mine for better aluminum work by adding an aluminum table, an extra set of liner rails and a mist system. All my mods were based on projects listed on the site.
Be advised that there are a fairly large number of skill sets required to get your projects up and running. If you have never worked with CNC equipment before, be prepared for a substantial learning curve. Putting it together and making it work took a lot longer than I was expecting.
Roy
Don,
It is kit based system from OpenBuilds
https://openbuildspartstore.com/
It is the large C-Beam kit that they no longer sell but they have newer design models available. I have modified mine for better aluminum work by adding an aluminum table, an extra set of liner rails and a mist system. All my mods were based on projects listed on the site.
Be advised that there are a fairly large number of skill sets required to get your projects up and running. If you have never worked with CNC equipment before, be prepared for a substantial learning curve. Putting it together and making it work took a lot longer than I was expecting.
Roy
In the past, friends on the forum, friends who purchased THF-51T and THF-51N, (friends who bought here) If you have time, please explain in the forum
I ca n’t reveal the name of my friend because it ’s privacy
So if a friend is willing to share the results, then we are very happy
Share: Are the results of using THF-51T and THF-51N the same? ?
How is the effect?
I ca n’t reveal the name of my friend because it ’s privacy
So if a friend is willing to share the results, then we are very happy
Share: Are the results of using THF-51T and THF-51N the same? ?
How is the effect?
Because this is used, the appearance is a bit dirty, please do n’t mind, because this is a normal functioning transistor
I can clean it for everyone, wipe off the oily surface, wipe it with a towel
All tests are completed, please see the picture
THF-51N TOKIN and 2PCS 2SK180（The length of the foot is only half. The friends who need it can send e-mails, only 2 of them are normal
No impact on work）
I can clean it for everyone, wipe off the oily surface, wipe it with a towel
All tests are completed, please see the picture
THF-51N TOKIN and 2PCS 2SK180（The length of the foot is only half. The friends who need it can send e-mails, only 2 of them are normal
No impact on work）
M25 stuffing questions
ZM,
Stuffing the B M25 boards and a few questions have come up and I would rather ask than guess.
1. Is it correct to say that the 1N4148 diodes are only used in positions 1,2 and 3 and not 4 and 5. Both channels.
2. Does the LM336 voltage ref go in the VR1 position. The circuit diagram has a different part number showing and that number is not on the checklist.
3. Do I ignore the long wire jumper on the r side of the r channel
😕
Thanks,
ZM,
Stuffing the B M25 boards and a few questions have come up and I would rather ask than guess.
1. Is it correct to say that the 1N4148 diodes are only used in positions 1,2 and 3 and not 4 and 5. Both channels.
2. Does the LM336 voltage ref go in the VR1 position. The circuit diagram has a different part number showing and that number is not on the checklist.
3. Do I ignore the long wire jumper on the r side of the r channel
😕
Thanks,
M25 does not need the diodes in position 4 + 5 nor the wirebridge on the right channel pcb.
been there - see post 905 of this thread
dunno 'bout LM336
A.
been there - see post 905 of this thread
dunno 'bout LM336
A.
Final schematic:
Babelfish M25, AKA M2 on steroids, AKA M2-XA25 bstrd AKA M2 gone Berserk
LM336 is an option.
ZM's building tips and tricks:
Babelfish M25, SissySIT - general building tips and tricks
Babelfish M25, AKA M2 on steroids, AKA M2-XA25 bstrd AKA M2 gone Berserk
LM336 is an option.
ZM's building tips and tricks:
Babelfish M25, SissySIT - general building tips and tricks
1. yes , just D1, D2, D3
2.LM336 or LM385 - whatever, both "ref. Zener" diodes ...... ok - IC , but serving same function ; LM336 name originated from Eagle software , ZM being lazy to change it , same part for my brain
3. yup , feel free to ignore both long thin wire jumpers
thanks.
Yes, but your brain has circuit knowledge dancing around inside it. Mine doesn't but there is still hope.😀
Yes, but your brain has circuit knowledge dancing around inside it. Mine doesn't but there is still hope.😀
This came up a while back, and a run was made. A certain number was required (10 or 20 I don't remember)
But it filled quickly. You might inquire over on the Store thread about chassis. Let people know here and it would quickly fill. I don't know why it isn't a regular feature but this is a labor of love thing, and at least they have the Deluxe 5U.
That said, drilling and tapping is easy. Just take your time, keep threads lubed while cutting, back out and don't force anything. I did it with simple hand tools on my first amp, F5.
Zenmods idea about drilling between fins is a good one.
Russellc
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