USS INDIANAPOLIS - CA-35 (memorial)
Several Shipboard Transmitters
are displayed in the USS Indianapolis Radio room Exhibit.
One area contains the, TBS; ART13 & associated Receiver & TDQ.PIX
2nd area has TAJ,TBK & (am)Modulator, TAD & TCK Transmitters. PIX
3rd area has TCS Receiver & Transmitter system. PIX
3rd area (Leftside) was Main receiver benchesWWII Recivers page:
4th area is the Tech /Work bench area. PIX
& Exhibit Test Equipment page
Some units received power from Dynamotor sets, others relied on the ships main power sources.
Exhibit volunteers are currently constructing AC power supplies that will enable us to return
the old Transmitters to full service using the similar design antennas..
5th area is the Supervisors/Work area and "Radio Shack" Entry door. PIX
USS Indianapolis; WW2IND
Transmitter & power supply page....PIX of our progress:
03 feb 2010 pic [AUX Transmitter rack]
TBS xmtr & extra RBB rcvr
ART13 xmtr page & extra RBC rcvr
ART13 PS location & TDQ xmtr
ART13 Transmitter PS Progress Thanks Bob-N9SF,Mike-WA9FDO,Ted-T.,Bob-W9KVK & Dave-N9KZJ!
01 JUN 2010(tue) 1st OnAir Test successful!TNX Bob_N9SF;Mike_WA9FDO;Dave_N9KZJ;Bob_W9KVK & Ted_T
*PS & ART13 team (Ted not shown)
*PS chassis Frnt view
*Top of chassis (inside)
*Top of chassis (wiring)
PS Unit contains all three power supplies needed to run the ART13 Transmitter.(1.2kv)+(400vdc)+(28vdc)
ART13 power supply was designed by W9KVK,N9SF & WA9FDO; Circuit Construction was N9SF(may hours) and the craftmanship is outstanding.
Parts & Paint (WA9FDO) came from many sources, W9KVK came up with a way to use Microwave ovens (modified) for the High voltage transformers & Chokes.
06 Jan 2011(Thur) Mike-WA9FDO constructed the box & Cable assy. & Dave-N9KZJ help with the installation
The complete project has taken approx. 6 months and many long hours resulting in a unit that takes the place of the usual
Generator/motor sets used during WWII. Oustanding job by all team members. USS Indy radio is very proud of this accomplishement.!
* ART-13 Xmtr Ctl Box Installed [Tnx Mike]!,
*WA9FDO & ART13 CTL Box..pic
*Control Box Bakside..pic
* WW2 Rcvr Bench #3 Mounting position..pic
*Control Box Front view..pic
*On Bench Close view..pic
26 May 2010(wed) *Main Power Supply chassis (ready for testing)
11 Apr 2010(Sun)
Bob's page:more pix
*Main frame chassis
*Main Front panel chassis
*400 vdc power supply chassis
*1.2kv dc power supply chassis
*+28 vdc power supply chassis
TCS Transmitter & PS Progress On the Air Capable!
Dec_2009( ) Thanks Ted!
*TCS ready for ops!
TBS TransmitterPS Progress Thanks Ted_T.,Dave; Bob -W9PSE & Bob-w9kvk!
TBS is modified to operate on 50.410 Mhz; output is 15-18 watts on MCW/AM..
Transmitter top view (6m Mods)New Coils( Thur 08 mar12)
*Multiplier & OSC 807 tubes & Crystal (IC)!
01 May 2012( tue ) Receiver CKS! See ->WWII Recivers page:
01 Dec 2012( Thur ) No Osc Output!
06 Dec 2012( Thur ) Found Bad Crystal&Replaced.. Output Pout=8watts(1st DBLR no Dip!
17 May 2012( Thur ) Mic PTT & CW Keying & AM Mod. CKS!(all OK)!
03 Jan 2013( Thur ) *TBS-Xmtr-Fp Settings!
26 Jan 2013( Sun ) *TBS-Xmtr-Fp Settings!
*TBS-Xmtr-(12 W Pout)!
03 Mar 2013(Sun)
*TBS-4 OPS ready at final Display location
*TBS-XMTR Top view (6m )
*TBS-Side view (6m )
08 Mar 2012( Thur ) Mic PTT & CW Keying & AM Modulation CKS!(all OK)!
*Ted making AM mod Checks!
*Bob-W9PSE monitors am mod!
21,25 & 28 Feb 2012( Thur & Tue ) Ted & Dave..Installed OSC FB Cap(1.5Pf) Checked others
[tue_ Rudy, Bob,O & chuck Helped] Tuned the Xmtr for 40 Watts Output
& .1 Ref into Dummy Load)
Output Frequency ..50.41 mhz..CW & Mic PTT need some attention...[ ]
26 Jan 2012( Thur )
*More Xmtr TroubleShooting Ted ..(found Bad Resistors & Missing OSC FB Cap)
29 Dec 2011( Thur ) *More Tunning & TroubleShooting
Ted & Rudy..
26 May 2011( Thur ) *Rt Side
*Xmtr gets New improved Coils ( install) TNX KC9TRV
22 Jan 2011( Sat ) Transmitter Mods!!
*New ceramic caps (OSC)!
*New ceramic caps (1st mult)!
*New ceramic caps (2nd mult)!
*New ceramic caps (Driver)!
TNX TED !
04 Dec 2010( Sat ) Transmitter Mods!!
*Ted & Tom Discuss TBS Xmtr!
*Xmtr Tripler Inside top view!
17 Nov 2010( Thur ) Power supply adjustments!!
*Ted making HV Power supply Checks!
* PS Inside top view!
*PS Chassis bottom_ out of case!
14 Oct 2010( thur ) Ted worked on the TBS xmtr , made some changes for xtal ops., & has 50.41 Mhz
working for output freq. all xmtr multipliers & final are tuned...Crystal has been ordered.
12 Sep 2010( sun ) TBS 6m freqs to be...50.109 (cw);_ 50.4 (AM);_ 50.16(ssb)
09 Sep 2010( thur )
*BNC connector added to Xmtr!
24 aug 2010( Tue )
*Ted making Xmtr Checks!
* Xmtr Back side wiring!
*Xmtr Chassis top view out of case!
*Xmtr Chassis bottom view!
*VFO:will have 1_Xtal ch (prototype view)!
19 aug 2010( Thur )
*Bob Does OSC ckt proto cks!
03 Jun 2010( Thur )
*TBS PS is mounted!
*TBS Control& PS boxes
27 May 2010( Thur ) *
*Teds Remote control box (ready 4 install)
TDQ Transmitter work in Progress VHF!;in the ART-13 shelf;Exhibit area .
* TDQ FP View
[115-156 Mhz ]..45 watts on AM & CW; Crystal control Frequencies.(115 Vac PS!)
* Xmtr open!
* Name Plate!(#1684)
* Antenna port!
* Xmtr FP!
* Xmtr Modulator!
*Xmtr Power Supply!
TAD Transmitter Progress Thanks Dave & chuck !
08 JUL_ 2010(thur )
*2nd cleaning-07 jul
TCK Transmitter & PS Progress Under construction!
TCK is 100/300 watt output HF CW/MCW/AM transmitter...
10 Aug_2010(tue) *TCK transfer pix.
*TCK in CAX-VA warehouse
* IN IWM Cleaning location
19 Aug_2010(thur) fixing-up & in the Exhibit!
*TCK fix up team...Thanks Dave-Mike & Rudy.!
*Inside cleaning Dave&Rudy.!
*TCK Back no panel .!
*Left side no Pnl.!
*Front doors opn.!
*PS door opn.!
03 Nov_2010(thur) *PS door opn."noCabls"!
*Meters Bak side.!
*Meters frnt PNL.!
*Front PNL touch-up.!
*TCK permanent Spot.!
26 Aug_2010(thur) !
*TCK with bulbs.!TNX Mike-FDO
16 Sep_2010(thur) !
*ATD Xmtr & TCK-3 together.!
17 Nov_2011(thur) Filiment & 110 vac cks!
*TCK Test team...Geting started.!
*1st No Fil's ck (Mike)ck switches?.!
*PWER Door & Schmatic.!
*TCK Fil's 1st Glow.!
*TCK Test team...Thanks Mike,Ted,Bob,O. & Dave.!
[Pix by Chuck]
11 DEC_2011(thur) Ant Meter Re-Installed!TNX -Dave-N9KZJ
*TCK Ant.Mtr No Glass!
*Mtr With Glass.!
*Back View Connected.!19 Feb_2012
08 Mar_2012(thur) Frnt PNL Lghts & Permanent 110 v AC Installed!...(TNX -Mike-wa9fdo)
*TCK FP LGHTS "ON"!
*Side View "110v AC perm.&.TUBE Glow!"
*TCK & WA9FDO.!
Mike is constructing the HV Power supplies... more later
TBK Transmitter & PS Progress
06 Jan 2011( ) Thanks Chuck!
*TBK/TBM Display Lght Chng (yellow)..pic
Jul_ 2010( )
*PS rack ready for parts -07 JUL
"Museum Antenna System"
 Three antenna systems, (1) VERTICAL(HF 40-6m) at 210 ft AGL
(2) LONG Wire antennas. (HF 80-6 m) with tuners at 110 ft AGL
(mounted Permanent 24 Aug 2010)
 One permanent Operating postiton with permanent HAM gear installed (at Chief's station)
Completion date ;20% complete, rest by late 2010 .
Radio room exhibit AC power upgrade Progress
Thanks Rudy, Jerry, Dave & Chuck !
21 apr 2010(tue)
*30amp RR-EL2 wiring complete
15 apr 2010(thur) *TBS Rack 220/110ac outlet
*Sup's desk 220/110ac outlet
*Maint. desk 220/110ac outlet Painter "rudy" (tnx)
*close view 220/110ac outlet
13 apr 2010(tue)
*Access hole to power panel
*Overhead junction box
*Exhibit 20amp Breaker box
Coordinator Ham radio operations