A Few Changes | '61 Fender Princeton Pt 2
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- Опубликовано: 5 фев 2025
- OK, define "a few"
Ahem.
Update: the odd looking baffle turns out to be original. It’s a VERY early 6G2.
See Part 1 here:
• Almost Mint | '61 Fend...
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These are things I get asked about a lot :
Amp Tech Gear Used :
Hakko FX-951 soldering station
Weller SPG 80L soldering iron (chassis work)
Rigol DS1054Z digital oscilloscope
Thsinde 18B+ digital multimeters
Kester 60/40 solder
Techspray #4 No-Clean Desoldering Braid
Below are things that make this channel possible that people don’t usually think about. If any of these companies want to send me new and wonderful toys, I’m open to that. I can’t take free stuff when it comes to the amps I review, etc, but for the stuff below, bribe away!
Microphones/Audio Equipment :
Guitar Amps : Royer R-10 Hot Rod and/or Shure SM57 (noted in videos)
Voiceover Bench : sE Audio sE8 (small diaphragm condenser)
Voiceover Streaming : Shure SM57 with shockmount and windscreen
Voiceover Mic Arms : Elgato Wave Mic arms
Guitar Mic Stand : Gator Frameworks short weighted base stand with boom
Mic Cables and Guitar Cables : Mogami/Neutrik
Mic pre : MOTU M2
DAW : Logic Pro X on MacBook Pro 16 running Sonoma 14
Plugins : No effects other than level matching/normalization unless a recording
specifically has reverb etc added in post (rare, various Waves plugins)
Monitors : Yamaha HS7s
Monitor Stands : Gator Frameworks Desktop Clamp-On Stands
Monitor Isolation Mounts : IsoAcoustics Iso-Puck Minis
Headphones : Beyerdynamic DT 770 Pro (main)
Headphones : Sony MDR-7506 (alternate)
Video Equipment :
Camera : Sony ZVE-10 with SmallRig Cage (main)
Lens : Sigma f2.8 18-50mm (main)
Lens : Sony ZVE10 kit lens (rarely used)
B Camera : Apple iPhone 13 Pro (rarely used)
Tripod : SmallRig 71” with SmallRig Fluid Video Head
Streaming Mount : Elgato Master Mount S with SmallRig Ballhead
Bench Light : SmallRig RC 120D
Bench Light Diffusor : SmallRig Lantern Softbox
Bench C-Stands (light and overhead camera) : Neewer Pro SS Heavy Duty
Streaming Light : SmallRig RC 120B
Streaming Diffusor : SmallRig Parabolic Softbox
Streaming Light Mount : SmallRig 148CM Wall Mount Boom with Triangle Base
Various Other Lights : Neewer LED Panels with Neewer Softboxes
Video Software :
Davinci Resolve 18
Paul Leeming LUTs
Adobe Illustrator 28
Adobe Photoshop 25
Ecamm Live (streaming software)
Can we all agree: This is now Electronics ART!
Careful your amp doesn’t start charging you micro transactions to adjust the eq
I kinda love that the owner is going all out on restoring this amp.
Lyle I'm not sucking up but that really is great restoration work. Look forward to hearing it with the reconed speaker.
"Just a few more bricks!" - Khufu, probably
Thanks for sharing Lyle! Great work as always.
I’m a fairly longtime musician and consider myself a pretty good player. And admittedly know little about tube amp electronics but know I love playing them! Your channel has been a great learning tool in an attempt to educate myself and I appreciate your knowledge and insight! Glad I found your channel!
There’s something about tearing down and repopulating an old fender eyelet circuit. I’ve done 2 now and it’s like zen. Making it look straight and clean is like shaping a bonsai tree.
Look so much better. "Must have been a Friday amp" funny, but makes a lot of sense actually.
Beautiful amp overall. That not-square opening in the baffle would drive me crazy so I guess I’m OCD 😜
Excellent! Can’t wait to see and hear her all dolled up!
I had an untouched brown Princeton that had one of the disc caps on the pots not soldered, it was looped in so it worked all those years. Must have been the same day dreaming gal, surely not Lupe! Shame the amp was cap harvested.
I believe I remember seeing that amp on reverb, that's a distinctive grill cloth. If I recall correctly it was listed in excellent or maybe even mint condition, which was a bit of a head scratcher given the aforementioned grill cloth.
I believe you’re correct. I pretty sure I seen this on Reverb too.
Lovely satisfying work as usual, mate!
I’m an always impressed by your skill level and knowledge. Wonderful amps like this need to be treated this well.
Square hole for a round, uh, peg? Thanks, Lyle. Your vid's always give me a chuckle. Cheers!
The Silvertone 1481 has a diamond shaped hole for its small 8" speaker... it really changes the sound. Kinda weird but also cool!
Hey there, was wondering were you get most your supplies from for amp repair and how the supply chain BS has effected things for you … thanks for your content brother 😎👍
Your work is outstanding!!
Concerning the speaker coil, it has a sound where once in a while, someone in a studio will want ‘that’ exact sound, and refer the engineer to this video. ;))
Many, many years ago, before internet era, I got one of my first tube amps which had a same kind of cathodyne PI and tremolo osc feeding output tube grids. It was some kind of cheap Watkins Dominator type amp. I did not like that thumping at all, so I just decided to add one 12AX7 after PI as a double cathode follower buffer to feed the output tubes and make the trem osc output nicely balanced to both output tube grids. (One option would have been to redesign the PI to be long tail etc. But in that very amp it was very easy just to add an extra tube.) That mod absolutely 100% gets rid of that thumping and you can really get a very deep and nice tremolo if you want to torture output tubes with that bias swing. Of course, you have to make sure that PT has enough juice to supply that extra tube's power. That mod is of course very inappropriate for a real vintage amps. 😂
Beautiful work as always, Lyle!
I am actually getting parts together to build a 6g2 amplifier. Chassis from mojotone is coming in, have a front panel coming, have the tag board already. Slowly going through listings looking for old transformers that were pulled from old amplifiers that fit the specs. I might make an original duplicate of the combo, but I want to try different things like making a 1x15 combo with an old Magnavox Alnico or something.
Yet another brilliant episode. Thank you.
Free info from Amp Expert Lyle? What value wattage of screen resistor would you use in a 62 Tremolux? I have 470 ohm in 1,3 and 5 Watt. Thank you! ❤❤❤
3W. Won’t give false failures.
Thank you sir!
It's so weird not seeing a brass plate!
Nice work as always👍 Did I hear the beginning of 8 miles high when you were demonstrating the voice coil rubbing?
That is correct sir
Apparently commenting helps the metrics, you're a high integrity guy!
I made a fortuitous discovery years ago.
I had bought some special flux for soldering to Aluminium.
Not only does it work well for Aluminium but it works on Steel as well.
I can't put a name to it right now because a lot of my stuff is still in boxes after a move.
It was American made stuff though.
All kinds of Toxicity warnings on the pot ... ☠
Beautiful 😉👍👍
Ah nice. Love these videos! ❤
What’s your opinion on reenergizing alnico speaker magnets? Is it necessary?
I’m not a speaker expert, but in a general sense if a magnet isn’t as strong as it was designed to be for an intended purpose, regaussing would be an option.
But I haven’t had weak magnets be an issue on any of the speakers in amps that have come through, even from the ‘30s.
"Friday Amp" haha. What are your thoughts on the Silvertone 1484 head? I got one that had some bad work done.
Send the cab to Uncle Doug ;)
9:30 Hopefully the solder looks better on the other side of those lugs. From the view of the camera, 8 isn't great, 1 is worse.
Yeah, I checked. Line of flux looks like a dark line but the joints are good.
Oh you are just the best
I’m always the smartest guy in an empty room.
Has anyone used Laminated Pine board for a baffle ?
Mojotone doesnt have a baffle for that? Or a whole new cabinet?
Cab, yes, but the dimensions are different.
@@PsionicAudio Ah, bummer.
that square and those front mounted screws are factory for all the earliest brownface princetons
I was just doing a lot of research on that, and you are correct.
Kind of weird, not as pretty as the later ones, but inherently valuable so it won’t be touched.
That un-square square means this was done by hand, so probably a VERY early 6G2.
Thumbs up 👍
those cheapo Illinois capacitors seem out of place next to the fancy Jupiters
What Illinois caps?
@@PsionicAudio the blue electrolytics? they look exactly like Illinois caps, at least
5:58 - 22k ohms
Not according to the meter. I want to know what it IS, not what the colors are.
What is the point of throwing out the metal oxide resistors? They are electrically superior to carbon film and carbon composition resistors in every way - less inductance, less capacitance, less noise.
Because it is a 1961 Princeton. It should look and sound as period correct as possible. And most of the “benefits” of MOs are moot in this circuit anyway. It has low voltages overall, not a ton of gain.
Notice I used 2W metal films for the dropping resistors - those are better than old CCs in ways that DO matter in this circuit. I could have left the MOs in those spots. But the reddish brownish Vishay MFs were a better visual match for the CCs. Aesthetics do matter in old rare amps, as long as sound comes first.
@@PsionicAudio As long as visuals are worth if for the customer the price of labor is justified.
Nice work and detail cleaning up those eyelet boards and components. Just a minor item when you refer to the bias resistor you mention it a few times and refer to it as 24K when it is in fact a red-red-ora, 22K. I know you have mentioned before that you are color blind and I just want to mention this if you want to edit the video and then delete this comment. I love these amps and have a 6G2, albeit a tuxedo version!
It measured 24K so I called it that. ;)
OCD brothas 😅
TremOlo........
Why aren't you watching the eclipse 🤔
We went outside and saw it. Looked like any other eclipse.