Large Scale Central

Dallee sound (#740) into a Bachmann K27

Howdy
I’m finally getting to the K27 on the workbench. I have an RCS set, and a Dallee sound board. Any caveats, or suggestions unique to the Dallee?

Been a long time since I did a Dallee.
Non-polyphonic.
You need me to find wiring instructions?
TOC

I think I got it figured out. Have everything laid out, its looks like it should go in easy enough. Now for a trip to find the biggest speaker I can fit in here.

Bob, I’ve found free speakers… Some quite good, from the recycling center. The have a covered walkin dumpster for TVs, stereos and Computers. I’ve befriended the crew with ice cream in the summer and they let me dissassemble and take what I need. Some TV’s can shock you even though they are unpluged. Be careful. The biggest isn’t always the best. Try the center speaker on big screens. Easy to get at with out ripping the back off.

Neat idea, Mark. Ill have to ask the lady at the dump if I can rummage in the electronics dumpster.

Walmart has a pretty good assortment of speakers at reasonable prices. RS doesn’t carry speakers anymore. Be careful about what speakers you get. Some are 4 ohm and some are 8 ohm. The 8 ohms work better. I found the 4 ohms cut off during operation for some mystical reason. So you may have to add a 4 ohm resistor to it. Then again that’s with a Sierra sound board, Dallee may be different.

Dallee can handle 4 ohm

Marc Bergmueller said:
Dallee can handle 4 ohm
'fraid not Marc.

According to page #1 of the Dallee installation instructions, Dallee states:

“The speaker impedance must be 8 ohms or higher”

Phoenix P2k2 and P5 sound systems will handle 4 ohms.

OK. Tender apart, weights removed (those are an annoying stack of steel plates!) RCS and sound board spongy-taped to the floor. Speaker I have doesn’t fit, need to remove the ridges on the floor. Battery packs will fit nicely where the weights were.

Soldering to commence tomorrow!

Gonna run in the rain?
Glue a piece of .080" black styrene across the Ames Orifice and put your gear under that.
Even Jane Fonda leaks in the night, and the superb design of that tender allows all sorts of moisture to access the floor.
The styrene will keep condensation and water out, and allow better bass response from your speaker, without the rattle of the coal pile.
Also, should you want to put in real coal, it won’t all fall into the Ames Orifice.

Good idea about sealing the tender top. Add that to the todo list. I generally build a styrene box around my speakers, separate from the tender. Made the sound in my shay 300% better!

I plan on chopping about 1/4" off the feet of the coal pile and adding a layer of real coal on it.