ANOTHER BOAT RADIO

[KL7OF]

I went to the landfill this morning and one of the canneries has put 4 old wooden fishing boats in the pile...One of them still had the radio.... A Pierce Simpson Gulfstream 120..all 5 xtal freqs are in the 2 meg range and the RX has a tunable BC band section as well as 5 xtal controlled freqs.  The TX has 2 12DQ6Bs in the final and a 12BH7A driver.This thing draws 30 A on Transmit!  All the xtals are fundamental frequency..I'd like to find a manual for this one..

[kf6pqt]

Wow, the radio looks great, what'd the boats look like?

[W2JBL]

that there Gulfscream is a kick butt radio. the last two channels were ususally set up for "high seas" operation on 4MHZ. no coil cutting needed. plug a 0-500MA meter in that 1/4" phone jack (usually labled METER) and with the loading coil tap disconnected dip the plate current alternately moving the tap on the plate coil and the big ceramic trimmer for the selected channel. all the taps follow the resistor color code- ch 1 is brown, ch2 red, 3 orange etc. after you dip the plate, start with the load coil tap at minmum inductance and go for max power into a dummy load. the receiver has RF and maybe also mixer trimmer caps for each channel as well. peak them with a weak signal on 75 or signal generator. be careful here as it's easy to peak the rcv on the image frequency.  it should tune right up on 75 on it's last one or two chammulz.  it draws 30A because it has a good 75-80 watts output. the solid state modulator is good for about a hundred watts of audio and features a negative peak limiter and yellification filter. the resulting carbon mic B17 audio will have the sidebanders running for the hills too.

[KL7OF]

Wow, the radio looks great, what'd the boats look like?

Went to the dump today...The old wooden boats are still there....These were in use from the 40's thru the 60's and there are still a few wooden boats in the fishery....This place is the largest red salmon fishery on the planet...The boats are drift gill netters and have always been limited to 32 ft in length..The second picture is of some more modern boats.  An Aluminum hull and a fiberglass hull, diesel power, refrigeration,modern electronics....lotsa Icom and Kenwood all band HF rigs in these newer boats....The latest thing is Multi engine diesel powered jet pump boats..There are at least 50 or 60 of those in the fleet of 1500.......

[AF9J]

Hmmmm, those look similar to some of the old commercial fishing boats that used to be on The Lake (Michigan), when I was younger (I grew up in Manitowoc, WI which is on the shore of Lake Michigan).  Many people don't realize that while the Great Lakes are known for their sport fishing (salmon & trout), before overfishing occurred in the 40s & 50s, they were just as well known for the commercial fishing that occurred on them.

73,
Ellen - AF9J

P.S. - some of the old wooden boats are still used by some of the remaining commercial fisherman on Lake Michigan (they mainly use pound nets for fishing).

[KA7WOC]

So Steve,
When are you and Jan coming back down?  Any crates this year to retrieve this year?
woc

[KL7OF]

So Steve,
When are you and Jan coming back down?  Any crates this year to retrieve this year?
woc
[/
quote]
Bob...The two boat radios are being shipped down the same way as last year..They go out this week..should be available for pickup at sea-mar in 2 or 3 weeks....I should be available for pickup in Tumtum in 4 to 5 weeks....Steve

[WU2D]

My friend Spencer's dad used to be an engineer at Sonar and I have had a couple of those radios. They look exactly like the one that you are showing and use the same tube lineup and tapped coil arrangement. Did all of the marine radio manufacturers copy circuits off each other?

Mike WU2D