JTM45/100 Dual OT schematic - Metropoulos Forum
2007年8月31日 · Differently: cut off JTM45 schematic (#1) before PI coupling capacitors. Get new schematic (#2) and put cutted power stage near by #2. Connect #1 schematic's coupling capacitors to PI and connect OT secondary winding in parallel with OT secondary winding in #2. And you've got JTM with dual OT.
Schematics for JTM45/100 - Metropoulos Forum
2005年12月6日 · The JTM45/100 has one more power supply node than a JTM45. The JTM45 has both the first gain stages(V1) and the second gain stage and cathode follower stage(V2) on a single power supply node. This JTM45/100 has them on seperate power supply nodes. The 100W Trem schematic doesn't show this, but Brian's Hendrix amp schematic does.
JTM45 circuit diagram question - Metropoulos Forum
2007年1月12日 · I looked at these circuit diagrams of the JTM45: plus attachment. Some questions about the found differences: 1. Why are often two 10uF capacitors are used instead of 8uF like in the marstran.com schematic ? 2. Why I can find a 25K/22K resistor under the 56K resistor or only the 56K resistor next to the both 10/8 uF capacitors ?
JTM45 filtering confusion... - Metropoulos Forum
2012年3月16日 · Let’s start with the basics. Looking at the 1966 JTM45 schematic from Brian, there are two 16uf caps in the preamp section and two 32uf caps for the power amp section. Not too hard to understand… First I’d like to know how these caps are called. I’m going from left to right in the schematic now:
Marshall Schematics - Metropoulos Forum
2014年3月1日 · Marshall JTM45 OS (offset) schematic. by Flames1950 » Sun Nov 14, 2010 3:55 pm 0 Replies 9057 Views Last ...
JTM45/100 Dual OT schematic - Page 3 - Metropoulos Forum
2007年9月4日 · D-Max wrote: LordAli, I shure would like to have your drawn schematic. I got some ideas to make a JTM45+100 (notice the plus), where the output stage can be switched between a JTM45/100 4-tube dual OT SS rectified output stage and a 2-tube, single OT JTM45 output stage with a GZ34. Possibly also high/low B+ switching. D-Max
Schematic of Straight JTM45 Metro Build - Metropoulos Forum
2010年2月6日 · Re: Schematic of Straight JTM45 Metro Build Post by Roe » Tue Jan 05, 2010 5:13 pm Scott the schem is great. yet, I have a few suggestions: CCs only distort when there is a substantial voltage drop across the resistor. this means that there are many positions where CCs will not distort and give you that fat warm sound they are famous for but ...
JTM45 Build - questions before I commit... - Metropoulos Forum
2018年11月14日 · Is “8” on the schematic OT meant to be 4, is “16” meant to be 8 and is “100 volt” meant to be 16? If so, where the schematic shows “to tap 16” from 27k resistor, does this still connect to what is shown as “16” (or 8 ) on the OT? - any tonal or quality differences between the Mallory and Synergy royal mustard caps?
Who uses the normal channel on his JTM45 | Page 3 | The ... - The …
2010年12月27日 · It was late last night and I missed something in the schematic posted below. The position of the unused channel volume directly affects the load seen by the output of the used channel volume (i.e. voltage divider). This explains the interaction between channels with no external bridging present...
Marshall JTM45 OS (offset) schematic - Metropoulos Forum
2010年11月14日 · Marshall JTM45 OS (offset) schematic. Post by Flames1950 » Sun Nov 14, 2010 3:55 pm