Hi, I'm a proud owner of a Randall collection. My Century 200 II seems to have some problems. There's some missing component in the PCB. The amp lacks power and two of the four power transistors are cold when working (they are NOT working).

Her's a pic of the whole circuit, and a pic of the missing (seem to be cut) component. My electronic repairman says is should be some kind of resistance. Some help? I need to fix this a.s.a.p...

Hello again!

My question this time is about the Randall RG100ES / HT footswitch.

I need to control the channel switch of this head (it uses the 6-pin connector) with my Behringer FCB1010 floor controller (wich uses standard mono jacks for switching). Is this possible?

I mean, I need to make a cable that goes from the 6-pin > to two 6.3 jacks. Is this possible, and how do I make this cable? I have the original Randall fotswitch schematics but I don't understand it.

I have a Randall FS5 footswitch so I can use this 6-pin connector (which seems impossible to find here in Europe).

Thank you very much.

Roi.

Hi!  

I'm new to this forum so hello to all members. I'm coming here for some help.

I own a RG100ES head, one RG100HT rackmount unit, one RG100 Classic head and one Century 200 Head.

My questions are:

1/ Can I use these heads without my cabs? Any problems if working on max volume with no load?

2/ (The important question): ALL these heads have a "direct out" jack which I want to use to feed a Mesa Boogie 2:90 power amp. The problem is this direct out (+4 dBm) is clipping my processors, it seems to be a really hot line out. It happens in all the heads.

-Master volume pot in the heads goes from silence (in zero position) to total clipping (in 2 position), instantly, I can see it in the processors input LEDs. The processor can handle up to +4 dBu.

-I've tried this +4 dbm direct out into a mixer (its line out can handle up to +30dBu) and it overloads the input too.

-Could this extreme clipping be related to the lack of power amp load in some way? I can't understand what's happening!

I want to use two RG100Heads as preamps, being able to use their FX loops independently, then direct outs to processors, then to stereo power amp.

Thank you very much.