Gryphin Amps - Updates pictures etc

Modulus_Amps · September 2015

After supplying parts and kits to amp builders for the last 7 years with Modulus I have started to develop a range of hi-spec amps to offer to those who do not have the skillset to build there own.... i.e the majority of guitarists

Here is an 18watt head, simple controls and a delight to play, pretty well known what these amps can do tone wise, but I hope to have some videos recorded shortly.
I will be at the Leeds Guitar Show in October and the Guitar Show at New Bingley Hall in Feb next year if you want to check it out.

I will post here occasionally, but my Facebook page will have the most activity.
https://www.facebook.com/GryphinAmps?ref=hl

Let me know what you think, all feedback is good, both good and bad

Cheers

Michael

EricTheWeary · September 2015

Welcome to the forum. They look good to me.

What does the Tone Shift do? If that's not a totally stupid question.... :-?

Modulus_Amps · September 2015

Thanks Eric, The tone shift changes/scoops the mids affected by the tone control, I added it after struggling with some muddy p90's fitted in an SG and it offered a little more clarity, sounds great in both positions with all my other test guitars, Tele/strat/LP etc

Jeremiah · September 2015

Looks interesting; I guess the inevitable question is: how much? And also, is any kind of power scaling/attenuation option available for those who can't play at full volume for whatever reason?

Sonuus · September 2015

Looks really nice. We'll be at the Leeds Guitar Show too. Lets meet there!

Modulus_Amps · September 2015

Not finalised price yet, this is the "budget" version but I can do power scaling as a custom option when required. I am also going to do a version with valve tremolo that I will include power scaling as default..

Sonuus said:

Looks really nice. We'll be at the Leeds Guitar Show too. Lets meet there!

Great see you there, this is my first show so will be interesting.

Michael

John_A · September 2015

Michael was a great supplier when I was building amps, did me some custom chassis and was always dead helpful!, and very knowledgeable

Best of luck with the venture in to selling complete amps

Modulus_Amps · October 2015

Thanks John!

Been a while since I checked in here, but at the Leeds show yesterday I had several people speak to me who had seen me here first, which was pretty cool.

If you are genuinely interested in an amp please contact me for pricing, I plan to target retail shops early next year and so will be offering the amps at a discounted rate until then and would rather not publish those prices before then if thats ok.

Cheers

Modulus_Amps · November 2015

Here is 10w Blackbird amp we put together for the Leeds show. single channel, Blackface type tones, can take 6L6, EL34 KT66 in the power section, paired with a 1 x 12 cabinet with a Celestion g12 Cream Alnico speaker

Modulus_Amps · November 2015

Had a great show at Merseyside on Sunday, the purple amp above got great reviews as did this Dragon 30 amp below.

Some fantastic craftmen in the UK, There were some lovely guitars and pedals on display, maybe need to get something sorted for the Birmingham show next year.

Mkjackary · November 2015

Loving the use of pink and purple wires

robinbowes · November 2015

Lovely clean build, that. Congrats.

R.

Modulus_Amps · November 2015

Cheers guys. I am sure the all tone is in the insulation colour!

This one is going into a studio in Dundee.

ThePrettyDamned · November 2015

Modulus_Amps;873573" said:
Cheers guys. I am sure the all tone is in the insulation colour!

This one is going into a studio in Dundee.

I think free the tone actually claimed their cable colours were chosen as the colour of the outside insulation affected tone.

jpfamps · December 2015

Nice work.

A couple of points.

I was under the impression that the SOZO caps weren't RoHS compliant. Have they now sorted this out?

For best reliability the axial filter caps should have additional attachment to the board and not just rely on the leads. I like to use cable tie, but silicone also works well. I've repaired plenty of amps where the leads to the caps have broken.

Modulus_Amps · December 2015

@jpfamps

Hi, yes thanks for the pointers. I have actually changed a few things since that photo was taken, bonding down components is the last thing to happen before going out the door to a client, but to be honest I don't normally do it on prototype builds I keep for myself.

SOZO standard caps are RoHS compliant, they are used a number of amp builders that sell to the EU. I don't know about their other caps so best to ask them direct. They may not sell you the standard range anymore though. You have to buy in bulk and I have been waiting 6 months for my last order.

You still doing faceplates? I noticed your custom amp panel website was down a few months ago.

BigMonka · December 2015

Can I ask how come none of the wires in that amp are twisted together? It always seems like valve amps have some tightly twisted wires which I thought was to do with noise rejection.

jpfamps · December 2015

Modulus_Amps said:

@jpfamps

Hi, yes thanks for the pointers. I have actually changed a few things since that photo was taken, bonding down components is the last thing to happen before going out the door to a client, but to be honest I don't normally do it on prototype builds I keep for myself.

SOZO standard caps are RoHS compliant, they are used a number of amp builders that sell to the EU. I don't know about their other caps so best to ask them direct. They may not sell you the standard range anymore though. You have to buy in bulk and I have been waiting 6 months for my last order.

You still doing faceplates? I noticed your custom amp panel website was down a few months ago.

That's useful info re the SOZOs.

We still do faceplates. Not sure why the site was ./ is down. We had some odd issues with our website recently, which may have affected it.

Modulus_Amps · December 2015

BigMonka said:

Can I ask how come none of the wires in that amp are twisted together? It always seems like valve amps have some tightly twisted wires which I thought was to do with noise rejection.

They don't need twisted for noise rejection they need to run parallel for noise rejection. The twisting method is an easy way to keep them close/parallel and achieve noise rejection.

robinbowes · December 2015

Modulus_Amps said:

BigMonka said:

Can I ask how come none of the wires in that amp are twisted together? It always seems like valve amps have some tightly twisted wires which I thought was to do with noise rejection.

They don't need twisted for noise rejection they need to run parallel for noise rejection. The twisting method is an easy way to keep them close/parallel and achieve noise rejection.

Hmm, I'm not sure about that.

This is quite a good write-up: http://ax84.com/bbs/dm.php?thread=283738

R.

Modulus_Amps · December 2015

I think this is high school physics, or maybe first year engineering physics, I forget which.
The twist doesn't produce the EM field, Conductors emit EM fields perpendicular to their surface and since they are opposite in polarity they cancel out. Running them parallel and tight achieves this.

If you are a amp builder try it, I haven't twisted wires for the last few years and don't accept amps that have heater hum and this way is much easier/neater.

From the AX84 article.

Merlin "This keeps the wires in close contact and parallel to each other"

Ballijukka "IMHO the actual twisting has nothing to do with the hum cancelling. It's just the most practical way to keep the two wires close together. I use normal double speaker cable and it works perfectly well."

if it was the twist you would need twisted circuit boards in all these mass produced amps, that would be interesting!

randomhandclaps · December 2015

robinbowes said:

Modulus_Amps said:

BigMonka said:

Can I ask how come none of the wires in that amp are twisted together? It always seems like valve amps have some tightly twisted wires which I thought was to do with noise rejection.

They don't need twisted for noise rejection they need to run parallel for noise rejection. The twisting method is an easy way to keep them close/parallel and achieve noise rejection.

Hmm, I'm not sure about that.

This is quite a good write-up: http://ax84.com/bbs/dm.php?thread=283738

R.

In fairness that page doesn't say anything different though -

"The heater wires should be tightly and neatly twisted. This keeps the wires in close contact and parallel to each other."
"IMHO the actual twisting has nothing to do with the hum cancelling. It's just the most practical way to keep the two wires close together. "

Modulus_Amps · December 2015

I have seen vintage Marshall amps with zip cord for heater wires, like Jukka mentioned, I have also built hot rodded JCM800 type amps with parallel heater wires and no hum. Taking care and understanding your layout is the most important thing.

Modulus_Amps · February 2016

It has been a while since I posted anything new in this thread, I have been really busy with the parts side of the business.

Here is the Dragon 30w head finished off, the covering is red with yellow metallic bubbles, so ends up looking orange.
Orange is not my favorite colour but I think it came out looking pretty smart.

30w from 4 EL84 valves, cathode biased. With Volume, Treble, Middle, Bass and Cut control and optional Power Control by request.
Spanky Clean tone with lots of sparkle with smooth overdrive tones as you push the volume control up, this amp had great feedback at the last guitar show!

earwighoney · February 2016

Some lovely amps. The Blackbird and Talon amps are the ones I'd like try most of all!

Modulus_Amps · February 2016

I am planning to be at a few guitar shows later in the year, I had to cancel going to the Bingley Hall one unfortunately. If you are ever in Scotland we can arrange a meet.

BigMonka · February 2016

Looks great. What does the Cut control do? Is it like a presence control?

Modulus_Amps · February 2016

yes and no, it does not operate the same way technically, but it does affect the high end so from a player point of view you may consider them to be the same. However on this amp the cut control setting is really critical, The amp has a top boost type pre-amp, which is very bright and the cut control is needed as just takes away any harshness, You can really dull the tone down or let is chime away depending on how this control is set.

BigMonka · February 2016

Modulus_Amps said:

yes and no, it does not operate the same way technically, but it does affect the high end so from a player point of view you may consider them to be the same. However on this amp the cut control setting is really critical, The amp has a top boost type pre-amp, which is very bright and the cut control is needed as just takes away any harshness, You can really dull the tone down or let is chime away depending on how this control is set.

Sounds good, thanks for the info.

Modulus_Amps · April 2016

This is the latest amp off the line, it has been delivered to a young guitarist currently playing in two bands, was sorry to see it go as I had so much fun playing it.

I have a couple of videos I am in the process of editing, hope to have them up tonight.

Modulus_Amps · July 2016

This is a Tweed Deluxe Inspire combo called a Firestorm that we built, can run 6V6's and 6l6's. this one was paired with a Celestion Cream Alnico speaker and really sounds great.

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Gryphin Amps - Updates pictures etc

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