need schematic for Peavey Bandit 112

[fredcapo]

Need schem for Bandit 112. Also need reverb tank part number. RT is missing.

[oc disorder]

Not sure which model
From a link by Jazz P Bass found this
***History and Timeline of the Peavey Bandit***
http://forums.peavey.com:81/viewtopi...+Peavey+Bandit
The reverb tank is
4EB2C1B
Weight: 1.5 lb
Use as a replacement in your old Peavey, or in your new amp project!

Two Spring Tank
Input Impedance - 600 Ohm
Output Impedance - 2250 Ohm
Decay - 1.75 to 3.0 sec
Input Insulated / Output Grounded
Mounting Plane - Horizontal Open Side Down

As links etc go missing I'll take a punt and reproduce it here from the Peavey forum & hope GennyFan the author from Dallas Texas doesn't mind !

***History and Timeline of the Peavey Bandit***

The Bandit

(1980) The very first Bandit was only made for one year. As subsequent versions became available, the original Bandit came to be known as the "Gunsmoke Bandit" because the font used to silkscreen the logo on the front of the amp resembled the font used in the opening credits of the popular 60's television show, Gunsmoke. The Gunsmoke Bandit was made in Meridian Mississippi USA and had a power rating of 50 watts RMS. It came equipped from the factory with a 12" guitar speaker made for Peavey by Eminence.


Solo Series Bandit

(1981-1983) The Solo Series Bandit soon followed the Gunsmoke Bandit and incorporated a variety of improvements, most notably a much improved sound. The Solo Series Bandit was made in Meridian MS USA and came equipped with Peavey's proprietary guitar speaker, the Scorpion.


Solo Series Bandit 65

(1983-1987) With the Solo Series Bandit 65, large improvements in tone compared to the previous version were again realized and the power rating was increased to 65 watts RMS. The Bandit 65 was made in Meridian MS USA and came equipped with Peavey's proprietary guitar speaker, the Scorpion.


Solo Series Bandit 75

(1987-1989) The Solo Series Bandit 75 saw the power increase by 10 watts to 75 watts RMS and a Bright Switch was added. The Bandit 75 was made in Meridian MS USA and came equipped with Peavey's proprietary guitar speaker, the Scorpion.


Solo Series Bandit 112

(1989-1995) The Solo Series Bandit 112 introduced many new features, the most notable being an increase in power to 80 watts RMS and a choice between Peavey's Scorpion speaker and Peavey's newly introduced Sheffield speaker. Many of the innovations that would later be branded as "Transtube" were included in the Solo Series Bandit 112, but the name "Transtube" had not been adopted yet. There have been several different versions of the Solo Series Bandit 112 but they all share the same manual and the same control layout. One of the more popular variations is known as the "Teal Stripe" or "Blue Stripe" Bandit due to a blue horizontal stripe below the control panel. The Solo Series Bandit 112 was made in Meridian MS USA.

Transtube Series Bandit 112

(1995-1999) The Transtube Series Bandit 112 formally introduced Peavey's proprietary "Transtube" technology that allows a solid state amplifier to perform more like a vacuum tube amplifier. Central to the Transtube concept is a patented "power brake" that allows the user to control the amount of power required for dynamic range compression from the power amp, from 100% all the way down to 10%, thus enabling the amplifier to acheive power amp compression without running at full volume. The Transtube Series Bandit 112 was made in Meridian MS USA and came stock with the Sheffield 1230 speaker. Notably, it was also the first Bandit to have an external speaker jack, allowing external speakers to be run instead of or in parallel with the internal speaker. Running into 8 ohms, power is still 80 watts RMS, but running into 4 ohms (the equivalent of using the internal 8 ohm speaker together with an 8 ohm extension speaker) the power is increased to 100 watts RMS. Due to the horizontal strip of chrome underneath the controls, this version is commonly referred to as the "Silver Stripe" Bandit, but due to the black color and square shape, it is sometimes called the "Blackbox" Bandit (not to be confused with "Blackface", which refers to F*nder products and/or performances in the style of Al Jolson...)


Transtube Series II Bandit 112 Made in USA

(2000-2004) With the Transtube Series II, the metal corners and input jacks that had been standard on all Peavey Bandits up until this time were replaced by plastic corners and plastic jacks. Due to a color scheme incorporating a red stripe across the front of the amplifier, many people refer to the Transtube Series II Bandit as the "Redstripe Bandit". During this time Peavey attempted to adopt a new company logo, and moved away from their traditional "pointy" logo. The new logo came to be known as the "Block Logo". The Block Logo was only used for a limited period of time, and the Block Logo Redstripe Bandits represent the last Peavey Bandits to be made in the USA.


Transtube Series II Bandit 112 Made in China

(2004-2005) This amp is cosmetically nearly identical to the USA version, so it is also referred to as "Redstripe Bandit", but there are several differences between the US built Redstripes and the Chinese ones. First, the Chinese version says, "Designed in the USA" on the front, while the actual USA version says "Designed and Made in the USA". Second, the speaker in the Chinese version is either unlabelled, or is labelled "Blue Marvel", a Peavey code for speakers made outside of Peavey and then rebranded as Peavey. All of the USA Redstripe Bandits shipped from the factory with US made Sheffield 1230 speakers. Another obvious difference is that all Chinese Redstripe Bandits have the "pointy logo", while most - but not all - of the USA Redstripe Bandits shipped with Block Logos.

Peavey Bandit with Transtube Technology

(2006-current) The current version of the Bandit is made in China. It is the first Bandit to incorporate a "simulated output" for recording purposes. This simulated output runs independently of the amp's internal speaker, allowing silent recording. The simulated output can also be used instead of or in addition to a traditional microphone. In this version the spring reverb has been replaced by a digital reverb circuit, and the 10% to 100% T. Dynamics knob is replaced by a 3-way switch, allowing operation at 25%, 50%, and 100% power. Metal corners are reintroduced, but the footswitch is no longer included with the amp and must be purchased separately.

[fredcapo]

OK thanks I will get more info. It looks like an early model. The reverb connector does not match a newer transitube bandit we had elsewhere in the shop. The newer one seems the tank output winding is dc 175 or so ohms.

[oc disorder]

Ok

There's a schematic for a 112 series 2 Bandit here http://music-electronics-forum.com/t15311/

Attaching a chart originally from Accutronics I think which shows the impedance and DC resistance for various "tank" models.
The 200 ohms looks near enough to the 175 ohms you measured.
And hopefully attaching a PDF (shudder) which should stick...

[fredcapo]

80 watt solo series bandit 112

Thanks for the info. What I have is a Solo series Bandit 112 80 watts.

The pin config for reverb is 4 round pins in-line comprising 2 pair. No space between pairs.

I dont want to buy a tank until I am sure and have schematic. Anyway I dont get a buzz when I touch the pins,
so will check the op amp first anyway. Thanks.