which tubes are correct for my model 52B?

which tubes are correct for my model 52B? - Printable Version

+- The PHILCO Phorum (https://philcoradio.com/phorum)
+-- Forum: Philco Radio Discussions (https://philcoradio.com/phorum/forumdisplay.php?fid=5)
+--- Forum: Philco Electronic Restoration (https://philcoradio.com/phorum/forumdisplay.php?fid=8)
+--- Thread: which tubes are correct for my model 52B? (/showthread.php?tid=19168)

which tubes are correct for my model 52B? - gribbled - 10-30-2018

I bought a model 52B from a local collector. Cabinet is near perfect and the chassis is untouched. I've never worked on a radio this old, and joined the Phorum. My radio has a sticker on the back that identifies it as a Chassis Type 52.

My first question involves the tube lineup for the RF/IF/Det/Audio/Rectifier functions.

The set came with 24 / 39(44) / 24 / 47 / 80

The schematic on the Phorum lists: 24 / 35 / 24 / 47 / 80

Inside, on the tube shield is a sticker that says "Philco Model 224" and it has a beautiful 3D drawing of the chassis. It lists 36 / 44 / 36 / 42 / 80

I can post pictures if this helps, thanks for any info!!

Dave Gribble

RE: which tubes are correct for my model 52B? - Radioroslyn - 10-30-2018

Hi Dave and welcome,
>The set came with 24 / 39(44) / 24 / 47 / 80

There's one tube in this group that doesn't belong. The 39/44 has a 6.3v heater where all of the other are 2.5v tubes. I'd go w/the chassis sticker as the tube shield may have been changed somewhere along the line. Methinks you'll be needing a 35 tube it's also goes by 35/51. In a pinch a 24A would probably work.

< It lists 36 / 44 / 36 / 42 / 80

These are similar to the above tubes BUT have 6.3v heater (barring the 80 it's 5v).
Oh come to think of it if it has a 47 tube in it it has to have a 2.5v set of tube as the 42 uses a different socket.

Hope this answer your question.

RE: which tubes are correct for my model 52B? - klondike98 - 10-30-2018

Welcome to the Phorum!
Icon_wave

Tubes 24, 35, and 47 all have a 2.5v filament requirment

A 39/44 tube uses 6.3v so it was probably added in there because it sorta looks like a 35 to make a sale easier, I don't think it would work in a 2.5 volt system....just a guess.

If I remember correctly a Model 224 is an exported version of a 24 but I can't locate a schematic. The 52 sticker on the chassis should be a positive ID that its a 52. The tube shield may have come from another set. I doubt if it left the factory that way but who knows...1932 was a rough year for radio sales and they may have made some short cuts.

Others more familiar with these will surely chime in with thoughts. Pictures might help.

update: I see Terry was typing at the same time I was ... he knows a LOT more than I do...

RE: which tubes are correct for my model 52B? - gribbled - 10-31-2018

Thanks Gentlemen, that makes sense. Here is a pic of the radio as received.

[Image: https://lh3.googleusercontent.com/Qhq4EMqLAb7yHBHcbm54Ud28aZGzhzRmZMlJFUxVvGkxCJMDab2w5Bm6q-eQ3WrcEU2LtPxST8rEehgNmC13gffhFiqUaLJ_do2SaTlZKS7vTqfMdV4iIFtKQxAov4ht2KVoiaOxwuAtpLEw-PwCjoUTxhJU3dRdjaPnZzKSGBaUGcdk-dRU-sMCIJCSdyB7nCnsPn13-X2WpZSa4L0vPBEM1UeUO8Y5Bi3m65O6v8gYg-duIeIV9txBZvZn2O7yOCYZ5iEHworrahpJDF-9F2KvVs5cxkVI_IkloqGTej3woGv0CUNgU4k5wez3qw3gX0Amq5NrWTi9IhsTQsp54EkYtH8I-WpQgIpOW5htOepRKi2ReG8ZRGs_Vz-7PG3WIh5sUSyCNL3dj6oMXm3xuCk3Azje0JvIiUPkL49sZXxZYC8tD-zJrgKzCIDMJtk9qFS2pc-jVwpEK7fH9suw_z65XmbQiw_tTLw2A-0xwBtIs-SIaSaffutTaEMZWluBp2NkLp75Na6u8KFIIHFMnaZunktoS3oyJwf_JzVgFpBlZeS2RSgvOHokqw9jICjIdfNpuRegvA1WEcOS_Cef5vLzYzPAO7EyoPrWEmRUkl-OHAZiCxDAaZIhklKKTeYG2kYk2A3h2VC6PrZvmwdlexjj=w835-h1113-no]

Here are a few of the chassis, showing the incorrect label on the tube shield

[Image: https://lh3.googleusercontent.com/CvarUVd-7lUR-nVHog1XASovTgIKbz09HjrdVBq6Y9_bV1k_kFSRvMjDVdHZyLq3xFyJ-jR2G5WNZhv-C8ZsJZXCwA2ufn958Z6PlfwfW8bx3hfoT_qDCS0hcy7RnDaM12NHsarbGf2GUCz4GvgWg4-ydigJVrJo0zI16pbGQ6sd8RDA1KVcsGtGroGSzWD46vm5d7IMTfGhVaeZ5FwzLpLevTClhGvIs8HXn0BamE-vTSWuCI7X5zUPgpIE-nMsf0KCP3PWmspz28Ec1g1dpO7OE_UAfms6R2OWWT9fa0K40qI5D5VclSEtmPLEIAlzFwcER9VSBgMnZeKXjKdM-9hPMa7uMEEKpwLeBjDO0LJzZRyglUFZpCeAXVmpCjV3I1kzh7gt_NCDjdYPZVv96T4CaLlBmGYl4DThfdd6Aqz5-HODuJayB0epwWGSH8b6t1Z3VmyfC4suLyfiZaqT3rEEKO2jHMQVnaWLXi4hd9R_mVfDYNCKvHtmKMKARo-xjqY3LhV2KNFfevRSaHU9QFZ6DgxcS_v7EsKSsSbMFUy1i19uufc0sbS5VDeAZLuB5a-anJo_E1JYI7vrR9oRCRJoV1eKzIdagsbq0PxIOfoZcySXZiMJgMz-u-kitOPMEQvrKrVNP5UDDlQX19yhGeFK=w835-h1113-no]

[Image: https://lh3.googleusercontent.com/nNAVXUSqMiGvKctFQJILOgc1hSDK4elDXLoROfUQqB8UPEIbk5tolMFxFJdHXVycv1psOdBog6ylQ5x02G3h7Yzf8MN5wQXYbBUE9FZkcLtC7SMP8wW5A2dMsZo0UB4T0NTnMqjYE1-PGmM_4aR3pP_W3GSDfopH_W8LxlLwbQ1HXl2vC74TDEufL3HAaydj1xHbZruiv-7r8eCR7kfoQfbj25Vttsa9IEeqSVZtmvZ53o-YqnG5NPu2bCYABmYgE5GvsBltGRzrRDHKy9p5OoRCo-peDb8mv94PBswJ2mbbKUSDNo8L9OYeZ3wpWDUUZo0WMvb42vZAMLGbEiiD_Fa1ly8rJ1iII8T1YdpvAy8ySXjaGZJ5tU8-3nI21FyBR3NKqeOLcmI6nha2ZpuQ2Zh76Qnl-uuoLI5qsbAUZfnEKYuoZx22G2oa1s51Wevh5z_YF0kxIfYFNzItzDtx5MQmEqU_cklcQPlefmSKGs56m_T51M8mGSVxRREJ2SjTrHOEyUpiGI0juSSjyFWAIhRv2RaYntGGLUtLt1zO3sN9aDaFL_h5fWrz0yJR8TTDyb2aL6kkokvSd0brAumIhsIr-b4st90EGcpe9l32YYsWuNvRGrrRNigLEHKME2lgAfzRt_cLWH-CxjgNptqLNSfj=w835-h1113-no]

[Image: https://lh3.googleusercontent.com/oKandMMV_TTxGdQT5oWAFFIDagyeCdv5GqbUpEHw1SxR_0kD-yT3mVHeOsgcFpgU-PXiM913zI0v2X8fA0zjWUKiILsWUfMwkNnrwb0YcXTpPpWREZ7WrmRC_4uHEhvGMHI1_1OUdBLDvpofaK0Qk4lQwgoqXmE8Xp9HyGB7WQv3dQ5HZ7kXLp7edQR99XpMBIu3gE-2cVwgT_bS6mJQ7sOFeoKqeI_HJlzTW_Mkzo4O7CU2lzpy5mMY2-G9v4cTLtOtfl3hpPQkDmD5C5_Bqz10gTb2h3_GnFjH9i8JYvz3fjYNAJ8JFg5EcCUkmjfhUPPGtsarqsuqQ2QfaGELywCnbgWKkHpYXV7lxFEPz0-ub01Rkuu4EW3X2acEeckiv6Rj9PPNXxipCZYO0uI0tO25vyzTX84zbiLD0z-1oYnYtHLulO3cVOE7K1oAe2yR0XF3360wRdlSrCapN_JTSSv4Fz13qmlNDg1TdPIFbSVkkOCmM6anbXiiwhZciQql_jsjmeqlIX9k_5O52ZP77LuY-gUAc4MVTGet_2IE59p19OpLNHxXEQHKgI-ZN4TzerPUCMAoQGR1SkrPaJCX8bvrHjq755ogNWHqvmd84DyoUwS3ZQu8At_ioyeJvgAVilq-PXYBqYc5b8NEmZtNNxsr=w1484-h1113-no]

[Image: https://lh3.googleusercontent.com/vHXXrj2OaLE5PcuE_Qu3JB3IccKcRtPLyq0XqccoMLLHSucBBHgb95XM0vp9cqo7ouxxNrzBz2XPn5peA6vPUeXNWvcBQ2C7vlA3tJhy1GDSipyROwtMzHj0FugqdUBZkpd0gS4JJmYleZcuRp1bYnWwL_hxH4xRiDGpgUAQzjtzwZ4r_3Y7JVIBxc1Bh-WCqB4gAsKmNZ8Py9PCfFm0ig63bWvGpfh7BLsj3Rlw6ug4ILAolObaXPNjarUua_1tJnW5cZypOlXNRNUVeIxhqAklWT2ktixEfO29cCeRlrpLtlIjYHEcafanTaLpbY8wACTmUGyA8-BNovJqdHGJF3vRKf5Po6PAMYHjJXlIPenWkmFQOEnUDWM0_grVk_FN6sC_UQQyBa6rEIQEkUhI161EcujIvfzStgmHiZ-2WCQ4xNXJjDyizWxpDw4niI6uAbBLkS_yNt2q5ORBVtnh9wH75uZRQrrgT_FNbDAy6S4RUTUURF25kl3oO71r03lEdZgd0JQ2NhfxNBAqSG97JU_rAoTy6nM_hW-vVq2pCxn7ttxpm5c-I8Xl9PL-G_HyCXG_e715GH0QR_8w8MIjWMMY9FmmFDghjWk4nQYE5NbQLxHV9dY1R1SE9o20K4Cml3bZfEjd9XeZxT24gvrTkgkB=w1484-h1113-no]

[Image: https://lh3.googleusercontent.com/fvhgqf5ClxKzaLSt7ABUOtMXRVI4J7_QeLo32JCzEgeiLotI3BbmMYnAmnltNDwhBb-yPCkV3KgcaixkISJi7UOfA4TM_P8eLtbWyO9Do6M2stUTnCHz-pF2PQk99uXshf49tO5FyQ3KMM-KIWvHZX_T-2LwVwdH_EozZrxHkTh03mTME8yGWM69-wlpZ0YFDJ-tc7JWTPx6TF7z1xee6wqLAhiUBRLC94cOvU1s3fg5TSwbBY0beMUys51eb-mSlcrG1TOQfEogERuwu1JJVoD5jsLTpUYY26xqqEHm8WqQRpLrySBu2i-sqvnu-gLpLkY-pR3F5fIUhvrnLBJ6baPGqaMX3_x18cPfk6DQOlBc5uoGrLQrUfzhIHSoWSgQU-Wm6N2uYEvYAhJ1L31vO7ebg5afcIPVwwtzKVNW0rs4FNXJMS6187HnGPxong03CJFLPsuWWz153IEHWmdUtwNs135RZjGe6cs7wGSsWBQ3-TRyZ165Gl_9Ue_K_mQqgF5vb6ShS5D4EtUNP-XqnzZy0clj6_fq9Dkt2NSWRiUW6EChkE85GKRIHwr1YRMqJmCjfCdx9AnI_gukgUDIlPFxSbQOiAXHya7OsT55hxh_NR5bKIsoMBZzzTULB_Vsdq_yRIugi4-jPGR1w10Yta1A=w835-h1113-no]